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* mtd: nand/docg4: fix and improve read of factory bbtMike Dunn2012-12-121-5/+19
| | | | | | | | | | | | | This patch does two things related to reading the factory badblock table during initialization: (1) fix error where a non-zero return code from docg4_read_page() is assumed to be an error (it was later changed to be max_bitflips; thanks to Brian Norris for bringing this to my attention a while back), and (2) if there is an error reading the factory bbt, it tries reading another (redundant) factory bbt table. Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: nand/docg4: reserve bb marker area in ecclayoutMike Dunn2012-12-121-4/+6
| | | | | | | | | Modify the nand_ecclayout to place the two bb marker bytes in the oob region off-limits to the user. Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: nand/docg4: add support for writing in reliable modeMike Dunn2012-12-121-0/+39
| | | | | | | | | | | | | | The controller on the docg4 has a "reliable" mode, where consecutive 2k pages are used in parallel. The initial program loader (IPL) on my Treo 680 expects the secondary program loader (SPL) to be written in this mode. This patch adds support for writing data in reliable mode, by way of a module parameter. Support for reading in this mode (as the IPL does) is not supported yet, but alternate (even-numbered) 2k pages written in reliable mode can be read normally (odd-numbered pages will contain junk and generate ecc errors). Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: mxc_nand: reorder part_probes to let cmdline override other sourcesLothar Waßmann2012-12-101-1/+2
| | | | | | | | | | | | | The cmdline is the easiest to change source of information. Thus let it take precedence over 'RedBoot' and 'ofpart'. This makes the mxc_nand driver to be in sync with all other NAND drivers that support 'cmdlinepart' partition parsing. Also change 'const char *' to 'const char const *' as advised by checkpatch.pl Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: mxc_nand: fix unbalanced clk_disable() in error pathLothar Waßmann2012-12-101-1/+2
| | | | | | | | | | | | | | If nand_scan_ident() or nand_scan_tail() fails, the NAND chip may have been deselected and the clock already disabled. Thus, check 'clk_act' in the error path to decide whether the clock still needs to be disabled. This fixes a: |WARNING: at drivers/clk/clk.c:472 __clk_disable+0x3c/0x78() Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: nandsim: Introduce debugfs infrastructureEzequiel Garcia2012-12-101-56/+130
| | | | | | | | | | | | | | | | It's more user friendly to report debug information and statistics through debugfs, than to use printing facilites. This patch introduces a very minimal debugfs infrastructure and moves eraseblock wear report to an entry located at: /sys/kernel/debug/nandsim/wear_report This means we can remove rptwear option and just let the user get the wear report when we needs to. Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: physmap_of: error checking to prevent a NULL pointer dereferenceAnton Prins2012-12-101-2/+4
| | | | | | | | | | | | | | | This patch solves a NULL pointer dereference, this may occur if the tuple is not mappable (jumps to continue in the for-loop). Out of the loop possible results are: - info->list_size == 0 if no of the tuples is mappable - info->list_size == 1 - info->list_size > 1 If no one of the supplied tuples is mappable (info->list_size == 0) and info->cmtd will not be set. But it is used in mtd_device_parse_register, OOPS! actually it should generate an error in this case! Signed-off-by: Anton Prins <anton.prins@nl.bosch.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtg: docg3: potential divide by zero in doc_write_oob()Dan Carpenter2012-12-101-1/+1
| | | | | | | | | | If we set oobdelta to zero then we will either return -EINVAL or hit a divide (modulus) by zero on the next line when we check "(ooblen % oobdelta)". It's better to just return -EINVAL here instead. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm47xxnflash: writing supportRafał Miłecki2012-12-102-3/+79
| | | | | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: tests/read: initialize buffer for whole next pageChristian Herzig2012-12-041-1/+1
| | | | | | | fix: do block-buffer initialize for the whole next page to zero. Signed-off-by: Christian Herzig <christian.herzig@keymile.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: at91: atmel_nand: return bit flips for the PMECC read_page()Josh Wu2012-12-031-5/+11
| | | | | | | | | | | | | | | | | This patch fix pmecc's read_page() to return maximum number of bitflips, 0 if uncorrectable. In the commit: 3f91e94f7f511de74c0d2abe08672ccdbdd1961c ("mtd: nand: read_page() returns max_bitflips ()"), The ecc.read_page() is changed to return the maximum number of bitflips. And when meet uncorrectable bitflips it needs to return 0. See the comment in nand.h: * @read_page: function to read a page according to the ECC generator * requirements; returns maximum number of bitflips corrected in * any single ECC step, 0 if bitflips uncorrectable, -EIO hw error Signed-off-by: Josh Wu <josh.wu@atmel.com> Reviewed-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: fix recovery after failed write-buffer operation in cfi_cmdset_0002.cHarald Nordgard-Hansen2012-12-031-2/+14
| | | | | | | | | | | | | | | | | | | | | When working on a problem with some flash chips that lock up during write-buffer operations, I think there may be a bug in the linux handling of chips using cfi_cmdset_0002.c. The datasheets I have found for a number of these chips all specify that when aborting a write-buffer command, it is not enough to use the standard reset. Rather a "write-to-buffer-reset command" is needed. This command is quite similar for all chips, the main variance seem to be if the final 0xF0 can go to any address or must go to addr_unlock1. The bug is then in the recovery handling when timing out at the end of do_write_buffer, where using the normal reset command is not sufficient. Without this change, if the write-buffer command fails then any following operations on the flash also fail. Signed-off-by: Harald Nordgard-Hansen <hhansen@pvv.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: nand: onfi need to be probed in 8 bits modeMatthieu CASTET2012-12-031-0/+2
| | | | | | | | - NAND_CMD_READID want an address that it is not scaled on x16 device (it is always 0x20) - NAND_CMD_PARAM want 8 bits data Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: nand: add NAND_BUSWIDTH_AUTO to autodetect bus widthMatthieu CASTET2012-12-032-5/+16
| | | | | | | | | | | | | | | | | | | | | | | The driver call nand_scan_ident in 8 bit mode, then readid or onfi detection are done (and detect bus width). The driver should update its bus width before calling nand_scan_tail. This work because readid and onfi are read work 8 byte mode. Note that nand_scan_ident send command (NAND_CMD_RESET, NAND_CMD_READID, NAND_CMD_PARAM), address and read data The ONFI specificication is not very clear for x16 device if high byte of address should be driven to 0, but according to [1] it should be ok to not drive it during autodetection. [1] 3.3.2. Target Initialization [...] The Read ID and Read Parameter Page commands only use the lower 8-bits of the data bus. The host shall not issue commands that use a word data width on x16 devices until the host determines the device supports a 16-bit data bus width in the parameter page. Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: nand: print flash size during detectionMatthieu CASTET2012-12-031-2/+2
| | | | | | | | This help to detect bad flash identification in case the size is not present on the name (ONFI). Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mted: nand_wait_ready timeout fixMatthieu CASTET2012-12-031-1/+1
| | | | | | | | nand_wait_ready timeout should not assume HZ=100. Make it independent of HZ value by using msecs_to_jiffies. Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm47xxnflash: support NAND_CMD_STATUSRafał Miłecki2012-12-031-0/+11
| | | | | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm47xxnflash: define some magic numbersRafał Miłecki2012-12-031-11/+20
| | | | | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: remove the "chip" parameter in nand_get_device()Huang Shijie2012-12-031-23/+14
| | | | | | | | | | | | There are two reasons to remove the "chip" parameter in nand_get_device(): [1] The nand_release_device() does not have the "chip" parameter. [2] We can get the nand_chip by the mtd->priv field. This patch removes the "chip" parameter in nand_get_device(). Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: remove the de-select chip code in nand_release_device()Huang Shijie2012-12-031-10/+25
| | | | | | | | | | | | | | | The nand_get_device() does not select the chip, but nand_release_device() does de-select the chip. It is really strange. With the current code, nand_sync() will de-select the chip, even if the chip has never been selected. To make the balance of select/de-select chip, it's better to remove the de-select chip code in nand_release_device() which makes the code more clear. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: m25p80: modify info for Micron N25Q128Liming Wang2012-12-031-1/+2
| | | | | | | | | | | | | | | Micron N25Q128 has two types of flash: - One is for 1.8v supply voltage, prefixed with "n25q128a11" and the jedec code is 0x20bb18. - Another is for 3v supply voltage, prefixed with "n25q128a13" and the jedec code is 0x20ba18. So modify the original type info and add another type for Micron N25Q128. Signed-off-by: Liming Wang <walimisdev@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd cs553x_nand: Initialise ecc.strength before nand_scan()Nathan Williams2012-12-031-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Loading cs553x_nand with Hynix H27U1G8F2BTR NAND flash causes this bug: kernel BUG at drivers/mtd/nand/nand_base.c:3345! invalid opcode: 0000 [#1] Modules linked in: cs553x_nand(+) vfat fat usb_storage ehci_hcd usbcore usb_comr Pid: 436, comm: modprobe Not tainted 3.6.7 #1 EIP: 0060:[<c118d205>] EFLAGS: 00010296 CPU: 0 EIP is at nand_scan_tail+0x64c/0x69c EAX: 00000034 EBX: cea6ed98 ECX: 00000000 EDX: 00000000 ESI: cea6ec00 EDI: cea6ec00 EBP: 20000000 ESP: cdd17e48 DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 CR0: 8005003b CR2: 0804e119 CR3: 0d850000 CR4: 00000090 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Process modprobe (pid: 436, ti=cdd16000 task=cdd1c320 task.ti=cdd16000) Stack: c12e962c c118f7ef 00000003 cea6ed98 d014b25c 20000000 fffff007 00000001 00000000 cdd53b00 d014b000 c1001021 cdd53b00 d01493c0 cdd53b00 cdd53b00 d01493c0 c1047f83 d014b4a0 00000000 cdd17f9c ce4be454 cdd17f48 cdd1c320 Call Trace: [<c118f7ef>] ? nand_scan+0x1b/0x4d [<d014b25c>] ? init_module+0x25c/0x2de [cs553x_nand] [<d014b000>] ? 0xd014afff [<c1001021>] ? do_one_initcall+0x21/0x111 [<c1047f83>] ? sys_init_module+0xe4/0x1261 [<c1031207>] ? task_work_run+0x36/0x43 [<c1265ced>] ? syscall_call+0x7/0xb Code: fa ff ff c7 86 d8 00 00 00 01 00 00 00 e9 5f fc ff ff 68 f8 26 2e c1 e8 a7 EIP: [<c118d205>] nand_scan_tail+0x64c/0x69c SS:ESP 0068:cdd17e48 Initialising ecc.strength before the call to nand_scan() fixes this. Signed-off-by: Nathan Williams <nathan@traverse.com.au> Cc: stable@vger.kernel.org [3.4+] Acked-by: Brian Norris <computersforpeace@gmail.com> Acked-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: fix a number of checkpatch complaintsArtem Bityutskiy2012-11-229-18/+25
| | | | | | | | While checking the "__devinit" removal patches with checkpatch.pl, I noticed several warnings related to a space between the function name and '(', as well as long lines. I fixed the warnings up in this patch. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: remove use of __devexitBill Pemberton2012-11-2246-50/+50
| | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: remove use of __devinitconstBill Pemberton2012-11-223-3/+3
| | | | | | | | CONFIG_HOTPLUG is going away as an option so __devinitconst is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: remove use of __devinitdataBill Pemberton2012-11-225-5/+5
| | | | | | | | CONFIG_HOTPLUG is going away as an option so __devinitdata is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: remove use of __devinitBill Pemberton2012-11-2250-93/+92
| | | | | | | | CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: remove use of __devexit_pBill Pemberton2012-11-2238-38/+38
| | | | | | | | CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: Drop FORTUNET supportAlexander Shiyan2012-11-223-285/+0
| | | | | | | | The kernel has never contained the symbol SA1100_FORTUNET so the driver never compiled and can be removed safely. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: ofpart: Replicate mtd cmdline "lk" option with device tree "lock" propertyJosh Radel2012-11-221-1/+4
| | | | | | | | | The mtd partition command line parser already supports a "lk" option to mask MTD_POWERUP_LOCK. This extends that same functionality to device tree partition specifications. Signed-off-by: Josh Radel <jradel@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: m25p80: add support for the Winbond w25q80bl chipStephen Warren2012-11-221-0/+1
| | | | | Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm47xxnflash: enable BCM4706 driverRafał Miłecki2012-11-223-3/+5
| | | | | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm47xxnflash: implement readingRafał Miłecki2012-11-222-0/+107
| | | | | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm47xxnflash: support for NAND_CMD_READID commandRafał Miłecki2012-11-222-0/+106
| | | | | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm47xxnflash: init NAND on BCM4706Rafał Miłecki2012-11-222-0/+110
| | | | | Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: prepare place for BCMA NAND flash driver(s)Rafał Miłecki2012-11-225-0/+135
| | | | | | | | | BCMA bus can contain NAND flash memory, it's registered in system as platform device. This adds required hooks and place for controler specific drivers. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* bcma: export PLL reading functionRafał Miłecki2012-11-222-1/+3
| | | | | | | This is required by NAND flash driver for initializing wait counters. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm63xxpart: use correct printk format for partitionsJonas Gorski2012-11-211-3/+2
| | | | | | | | Use ll to be able to remove the casts. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Reviewed-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm63xxpart: move the last curpart++ to its correct placeJonas Gorski2012-11-211-1/+1
| | | | | | | | The line belongs above the comment, not below it. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Reviewed-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm63xxpart: make fixed part length calculation more genericJonas Gorski2012-11-211-4/+7
| | | | | | | | | | The CFE does not use 4K sectors even if the flash supports it, so for the fixed partitions like CFE itself or NVRAM the erase block size is always 64k or bigger. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Reviewed-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm63xxpart: merge sparelen calculationJonas Gorski2012-11-211-2/+1
| | | | | | | | | The length of the spare part is calculated the same way in both branches so move to a common place. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Reviewed-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: bcm63xxpart: remove unused variableJonas Gorski2012-11-211-8/+3
| | | | | | | | namelen is never used, so drop it. Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com> Reviewed-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: use SQUASHFS_MAGIC from uapi/linux/magic.hLuka Perkov2012-11-211-5/+2
| | | | | Signed-off-by: Luka Perkov <luka@openwrt.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: mtd_blkdevs: Replace request handler kthread with a workqueueEzequiel Garcia2012-11-212-33/+18
| | | | | | | | | | | | | | | | | | | By replacing a kthread with a workqueue, the code is now a bit clearer. There's also a slight reduction of code size (numbers apply for x86): Before: text data bss dec hex filename 3248 36 0 3284 cd4 drivers/mtd/mtd_blkdevs.o After: text data bss dec hex filename 3150 36 0 3186 c72 drivers/mtd/mtd_blkdevs.o Due to lack of real hardware, tests have been performed on an emulated environment with mtdswap and mtdblock over nandsim devices. Some real testing should be done, before merging this patch. Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: mtd_blkdev: Use a different name for block_device_operations variableEzequiel Garcia2012-11-211-2/+2
| | | | | | | | | struct mtd_blktrans_ops is a type, and mtd_blktrans_ops is a variable. To improve code clarity it's better to not use the same names, so we just change the latter. Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: Fix typo mtd/testsMasanari Iida2012-11-188-9/+9
| | | | | | | Correct spelling typo in printk within drivers/mtd/tests. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: de-select the chip when it is not usedHuang Shijie2012-11-181-4/+6
| | | | | | | | | | | | | | | | | | When we scan several nand chips with nand_scan(), such as ....................... nand_scan(*, 2); ....................... In nand_scan_ident(), the maxchips will become 2, so the current code will select chip 1 to read the device ID. But the chip 0 is still selected in this case. To make the logic clear, we'd better de-select the chip when it is not used. This patch de-select the nand chip if it is not used any more. Signed-off-by: Huang Shijie <b32955@freescale.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: s3c2410: Fix potential NULL pointer dereference errorSachin Kamat2012-11-181-2/+5
| | | | | | | | 'set' is tested for NULL. But subsequently accessed without the check. Thus making it conditional to avoid NULL pointer dereferencing. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* jffs2: hold erase_completion_lock on exitAlexey Khoroshilov2012-11-181-2/+4
| | | | | | | | | | | | | Users of jffs2_do_reserve_space() expect they still held erase_completion_lock after call to it. But there is a path where jffs2_do_reserve_space() leaves erase_completion_lock unlocked. The patch fixes it. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Cc: stable@vger.kernel.org Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
* mtd: physmap_of: allow to specify the mtd name for retro compatiblityJean-Christophe PLAGNIOL-VILLARD2012-11-162-1/+7
| | | | | | | | | linux,mtd-name allow to specify the mtd name for retro capability with physmap-flash drivers as boot loader pass the mtd partition via the old device name physmap-flash. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-05 06:49:34 +0100