diff options
author | Jiri Kosina <jkosina@suse.cz> | 2011-04-26 10:22:15 +0200 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2011-04-26 10:22:59 +0200 |
commit | 07f9479a40cc778bc1462ada11f95b01360ae4ff (patch) | |
tree | 0676cf38df3844004bb3ebfd99dfa67a4a8998f5 /drivers/watchdog | |
parent | ath9k_hw: don't touch with treewide double semicolon removal (diff) | |
parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ecr... (diff) | |
download | linux-07f9479a40cc778bc1462ada11f95b01360ae4ff.tar.xz linux-07f9479a40cc778bc1462ada11f95b01360ae4ff.zip |
Merge branch 'master' into for-next
Fast-forwarded to current state of Linus' tree as there are patches to be
applied for files that didn't exist on the old branch.
Diffstat (limited to 'drivers/watchdog')
-rw-r--r-- | drivers/watchdog/Kconfig | 2 | ||||
-rw-r--r-- | drivers/watchdog/Makefile | 4 | ||||
-rw-r--r-- | drivers/watchdog/acquirewdt.c | 2 | ||||
-rw-r--r-- | drivers/watchdog/davinci_wdt.c | 22 | ||||
-rw-r--r-- | drivers/watchdog/max63xx_wdt.c | 20 | ||||
-rw-r--r-- | drivers/watchdog/mpc8xxx_wdt.c | 2 | ||||
-rw-r--r-- | drivers/watchdog/nv_tco.c | 2 | ||||
-rw-r--r-- | drivers/watchdog/pc87413_wdt.c | 2 | ||||
-rw-r--r-- | drivers/watchdog/pnx4008_wdt.c | 28 | ||||
-rw-r--r-- | drivers/watchdog/rdc321x_wdt.c | 3 | ||||
-rw-r--r-- | drivers/watchdog/s3c2410_wdt.c | 19 | ||||
-rw-r--r-- | drivers/watchdog/sbc7240_wdt.c | 2 | ||||
-rw-r--r-- | drivers/watchdog/sch311x_wdt.c | 2 | ||||
-rw-r--r-- | drivers/watchdog/shwdt.c | 2 | ||||
-rw-r--r-- | drivers/watchdog/smsc37b787_wdt.c | 2 | ||||
-rw-r--r-- | drivers/watchdog/softdog.c | 16 | ||||
-rw-r--r-- | drivers/watchdog/sp5100_tco.c | 16 | ||||
-rw-r--r-- | drivers/watchdog/sp805_wdt.c | 2 |
18 files changed, 80 insertions, 68 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index b69d71482554..1b0f98bc51b5 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -933,7 +933,7 @@ config PNX833X_WDT depends on SOC_PNX8335 help Hardware driver for the PNX833x's watchdog. This is a - watchdog timer that will reboot the machine after a programable + watchdog timer that will reboot the machine after a programmable timer has expired and no process has written to /dev/watchdog during that time. diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile index d520bf9c3355..3f8608b922a7 100644 --- a/drivers/watchdog/Makefile +++ b/drivers/watchdog/Makefile @@ -4,7 +4,7 @@ # Only one watchdog can succeed. We probe the ISA/PCI/USB based # watchdog-cards first, then the architecture specific watchdog -# drivers and then the architecture independant "softdog" driver. +# drivers and then the architecture independent "softdog" driver. # This means that if your ISA/PCI/USB card isn't detected that # you can fall back to an architecture specific driver and if # that also fails then you can fall back to the software watchdog @@ -153,7 +153,7 @@ obj-$(CONFIG_WATCHDOG_CP1XXX) += cpwd.o # Xen obj-$(CONFIG_XEN_WDT) += xen_wdt.o -# Architecture Independant +# Architecture Independent obj-$(CONFIG_WM831X_WATCHDOG) += wm831x_wdt.o obj-$(CONFIG_WM8350_WATCHDOG) += wm8350_wdt.o obj-$(CONFIG_MAX63XX_WATCHDOG) += max63xx_wdt.o diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c index 2ffce4d75443..b6a2b58cbe64 100644 --- a/drivers/watchdog/acquirewdt.c +++ b/drivers/watchdog/acquirewdt.c @@ -26,7 +26,7 @@ * Theory of Operation: * The Watch-Dog Timer is provided to ensure that standalone * Systems can always recover from catastrophic conditions that - * caused the CPU to crash. This condition may have occured by + * caused the CPU to crash. This condition may have occurred by * external EMI or a software bug. When the CPU stops working * correctly, hardware on the board will either perform a hardware * reset (cold boot) or a non-maskable interrupt (NMI) to bring the diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c index 596ba604e78d..51b5551b4e3f 100644 --- a/drivers/watchdog/davinci_wdt.c +++ b/drivers/watchdog/davinci_wdt.c @@ -202,7 +202,6 @@ static struct miscdevice davinci_wdt_miscdev = { static int __devinit davinci_wdt_probe(struct platform_device *pdev) { int ret = 0, size; - struct resource *res; struct device *dev = &pdev->dev; wdt_clk = clk_get(dev, NULL); @@ -216,31 +215,31 @@ static int __devinit davinci_wdt_probe(struct platform_device *pdev) dev_info(dev, "heartbeat %d sec\n", heartbeat); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { + wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (wdt_mem == NULL) { dev_err(dev, "failed to get memory region resource\n"); return -ENOENT; } - size = resource_size(res); - wdt_mem = request_mem_region(res->start, size, pdev->name); - - if (wdt_mem == NULL) { + size = resource_size(wdt_mem); + if (!request_mem_region(wdt_mem->start, size, pdev->name)) { dev_err(dev, "failed to get memory region\n"); return -ENOENT; } - wdt_base = ioremap(res->start, size); + wdt_base = ioremap(wdt_mem->start, size); if (!wdt_base) { dev_err(dev, "failed to map memory region\n"); + release_mem_region(wdt_mem->start, size); + wdt_mem = NULL; return -ENOMEM; } ret = misc_register(&davinci_wdt_miscdev); if (ret < 0) { dev_err(dev, "cannot register misc device\n"); - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, size); + wdt_mem = NULL; } else { set_bit(WDT_DEVICE_INITED, &wdt_status); } @@ -253,8 +252,7 @@ static int __devexit davinci_wdt_remove(struct platform_device *pdev) { misc_deregister(&davinci_wdt_miscdev); if (wdt_mem) { - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, resource_size(wdt_mem)); wdt_mem = NULL; } diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c index 7a82ce5a6337..73ba2fd8e591 100644 --- a/drivers/watchdog/max63xx_wdt.c +++ b/drivers/watchdog/max63xx_wdt.c @@ -270,7 +270,6 @@ static int __devinit max63xx_wdt_probe(struct platform_device *pdev) { int ret = 0; int size; - struct resource *res; struct device *dev = &pdev->dev; struct max63xx_timeout *table; @@ -294,21 +293,19 @@ static int __devinit max63xx_wdt_probe(struct platform_device *pdev) max63xx_pdev = pdev; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { + wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (wdt_mem == NULL) { dev_err(dev, "failed to get memory region resource\n"); return -ENOENT; } - size = resource_size(res); - wdt_mem = request_mem_region(res->start, size, pdev->name); - - if (wdt_mem == NULL) { + size = resource_size(wdt_mem); + if (!request_mem_region(wdt_mem->start, size, pdev->name)) { dev_err(dev, "failed to get memory region\n"); return -ENOENT; } - wdt_base = ioremap(res->start, size); + wdt_base = ioremap(wdt_mem->start, size); if (!wdt_base) { dev_err(dev, "failed to map memory region\n"); ret = -ENOMEM; @@ -326,8 +323,8 @@ static int __devinit max63xx_wdt_probe(struct platform_device *pdev) out_unmap: iounmap(wdt_base); out_request: - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, size); + wdt_mem = NULL; return ret; } @@ -336,8 +333,7 @@ static int __devexit max63xx_wdt_remove(struct platform_device *pdev) { misc_deregister(&max63xx_wdt_miscdev); if (wdt_mem) { - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, resource_size(wdt_mem)); wdt_mem = NULL; } diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c index 6709d723e017..528bceb220fd 100644 --- a/drivers/watchdog/mpc8xxx_wdt.c +++ b/drivers/watchdog/mpc8xxx_wdt.c @@ -195,7 +195,7 @@ static int __devinit mpc8xxx_wdt_probe(struct platform_device *ofdev) if (!ofdev->dev.of_match) return -EINVAL; - wdt_type = match->data; + wdt_type = ofdev->dev.of_match->data; if (!freq || freq == -1) return -EINVAL; diff --git a/drivers/watchdog/nv_tco.c b/drivers/watchdog/nv_tco.c index 267377a5a83e..afa78a54711e 100644 --- a/drivers/watchdog/nv_tco.c +++ b/drivers/watchdog/nv_tco.c @@ -302,7 +302,7 @@ MODULE_DEVICE_TABLE(pci, tco_pci_tbl); * Init & exit routines */ -static unsigned char __init nv_tco_getdevice(void) +static unsigned char __devinit nv_tco_getdevice(void) { struct pci_dev *dev = NULL; u32 val; diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c index 139d773300c6..b7c139051575 100644 --- a/drivers/watchdog/pc87413_wdt.c +++ b/drivers/watchdog/pc87413_wdt.c @@ -49,7 +49,7 @@ #define WDT_DATA_IO_PORT (WDT_INDEX_IO_PORT+1) #define SWC_LDN 0x04 #define SIOCFG2 0x22 /* Serial IO register */ -#define WDCTL 0x10 /* Watchdog-Timer-Controll-Register */ +#define WDCTL 0x10 /* Watchdog-Timer-Control-Register */ #define WDTO 0x11 /* Watchdog timeout register */ #define WDCFG 0x12 /* Watchdog config register */ diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c index c7cf4cbf8ab3..614933225560 100644 --- a/drivers/watchdog/pnx4008_wdt.c +++ b/drivers/watchdog/pnx4008_wdt.c @@ -254,7 +254,6 @@ static struct miscdevice pnx4008_wdt_miscdev = { static int __devinit pnx4008_wdt_probe(struct platform_device *pdev) { int ret = 0, size; - struct resource *res; if (heartbeat < 1 || heartbeat > MAX_HEARTBEAT) heartbeat = DEFAULT_HEARTBEAT; @@ -262,42 +261,42 @@ static int __devinit pnx4008_wdt_probe(struct platform_device *pdev) printk(KERN_INFO MODULE_NAME "PNX4008 Watchdog Timer: heartbeat %d sec\n", heartbeat); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { + wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (wdt_mem == NULL) { printk(KERN_INFO MODULE_NAME "failed to get memory region resouce\n"); return -ENOENT; } - size = resource_size(res); - wdt_mem = request_mem_region(res->start, size, pdev->name); + size = resource_size(wdt_mem); - if (wdt_mem == NULL) { + if (!request_mem_region(wdt_mem->start, size, pdev->name)) { printk(KERN_INFO MODULE_NAME "failed to get memory region\n"); return -ENOENT; } - wdt_base = (void __iomem *)IO_ADDRESS(res->start); + wdt_base = (void __iomem *)IO_ADDRESS(wdt_mem->start); wdt_clk = clk_get(&pdev->dev, NULL); if (IS_ERR(wdt_clk)) { ret = PTR_ERR(wdt_clk); - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, size); + wdt_mem = NULL; goto out; } ret = clk_enable(wdt_clk); if (ret) { - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, size); + wdt_mem = NULL; + clk_put(wdt_clk); goto out; } ret = misc_register(&pnx4008_wdt_miscdev); if (ret < 0) { printk(KERN_ERR MODULE_NAME "cannot register misc device\n"); - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, size); + wdt_mem = NULL; clk_disable(wdt_clk); clk_put(wdt_clk); } else { @@ -320,8 +319,7 @@ static int __devexit pnx4008_wdt_remove(struct platform_device *pdev) clk_put(wdt_clk); if (wdt_mem) { - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, resource_size(wdt_mem)); wdt_mem = NULL; } return 0; diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c index 3939e53f5f98..d8e725082fdc 100644 --- a/drivers/watchdog/rdc321x_wdt.c +++ b/drivers/watchdog/rdc321x_wdt.c @@ -37,6 +37,7 @@ #include <linux/io.h> #include <linux/uaccess.h> #include <linux/mfd/rdc321x.h> +#include <linux/mfd/core.h> #define RDC_WDT_MASK 0x80000000 /* Mask */ #define RDC_WDT_EN 0x00800000 /* Enable bit */ @@ -231,7 +232,7 @@ static int __devinit rdc321x_wdt_probe(struct platform_device *pdev) struct resource *r; struct rdc321x_wdt_pdata *pdata; - pdata = platform_get_drvdata(pdev); + pdata = mfd_get_data(pdev); if (!pdata) { dev_err(&pdev->dev, "no platform data supplied\n"); return -ENODEV; diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index 25b39bf35925..f7f5aa00df60 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -402,7 +402,6 @@ static inline void s3c2410wdt_cpufreq_deregister(void) static int __devinit s3c2410wdt_probe(struct platform_device *pdev) { - struct resource *res; struct device *dev; unsigned int wtcon; int started = 0; @@ -416,20 +415,19 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev) /* get the memory region for the watchdog timer */ - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res == NULL) { + wdt_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (wdt_mem == NULL) { dev_err(dev, "no memory resource specified\n"); return -ENOENT; } - size = resource_size(res); - wdt_mem = request_mem_region(res->start, size, pdev->name); - if (wdt_mem == NULL) { + size = resource_size(wdt_mem); + if (!request_mem_region(wdt_mem->start, size, pdev->name)) { dev_err(dev, "failed to get memory region\n"); return -EBUSY; } - wdt_base = ioremap(res->start, size); + wdt_base = ioremap(wdt_mem->start, size); if (wdt_base == NULL) { dev_err(dev, "failed to ioremap() region\n"); ret = -EINVAL; @@ -524,8 +522,8 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev) iounmap(wdt_base); err_req: - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, size); + wdt_mem = NULL; return ret; } @@ -545,8 +543,7 @@ static int __devexit s3c2410wdt_remove(struct platform_device *dev) iounmap(wdt_base); - release_resource(wdt_mem); - kfree(wdt_mem); + release_mem_region(wdt_mem->start, resource_size(wdt_mem)); wdt_mem = NULL; return 0; } diff --git a/drivers/watchdog/sbc7240_wdt.c b/drivers/watchdog/sbc7240_wdt.c index 67ddeb1c830a..ff11504c376e 100644 --- a/drivers/watchdog/sbc7240_wdt.c +++ b/drivers/watchdog/sbc7240_wdt.c @@ -273,7 +273,7 @@ static int __init sbc7240_wdt_init(void) /* The IO port 0x043 used to disable the watchdog * is already claimed by the system timer, so we - * cant request_region() it ...*/ + * can't request_region() it ...*/ if (timeout < 1 || timeout > SBC7240_MAX_TIMEOUT) { timeout = SBC7240_TIMEOUT; diff --git a/drivers/watchdog/sch311x_wdt.c b/drivers/watchdog/sch311x_wdt.c index b61ab1c54293..c7cf4b01f58d 100644 --- a/drivers/watchdog/sch311x_wdt.c +++ b/drivers/watchdog/sch311x_wdt.c @@ -201,7 +201,7 @@ static void sch311x_wdt_get_status(int *status) spin_lock(&sch311x_wdt_data.io_lock); /* -- Watchdog timer control -- - * Bit 0 Status Bit: 0 = Timer counting, 1 = Timeout occured + * Bit 0 Status Bit: 0 = Timer counting, 1 = Timeout occurred * Bit 1 Reserved * Bit 2 Force Timeout: 1 = Forces WD timeout event (self-cleaning) * Bit 3 P20 Force Timeout enabled: diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c index 4e3e7eb5919c..db84f2322d1a 100644 --- a/drivers/watchdog/shwdt.c +++ b/drivers/watchdog/shwdt.c @@ -50,7 +50,7 @@ * necssary. * * As a result of this timing problem, the only modes that are particularly - * feasible are the 4096 and the 2048 divisors, which yeild 5.25 and 2.62ms + * feasible are the 4096 and the 2048 divisors, which yield 5.25 and 2.62ms * overflow periods respectively. * * Also, since we can't really expect userspace to be responsive enough diff --git a/drivers/watchdog/smsc37b787_wdt.c b/drivers/watchdog/smsc37b787_wdt.c index df88cfa05f35..e97b0499bd0d 100644 --- a/drivers/watchdog/smsc37b787_wdt.c +++ b/drivers/watchdog/smsc37b787_wdt.c @@ -191,7 +191,7 @@ static inline void wdt_timer_conf(unsigned char conf) static inline void wdt_timer_ctrl(unsigned char reg) { /* -- Watchdog timer control -- - * Bit 0 Status Bit: 0 = Timer counting, 1 = Timeout occured + * Bit 0 Status Bit: 0 = Timer counting, 1 = Timeout occurred * Bit 1 Power LED Toggle: 0 = Disable Toggle, 1 = Toggle at 1 Hz * Bit 2 Force Timeout: 1 = Forces WD timeout event (self-cleaning) * Bit 3 P20 Force Timeout enabled: diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c index 100b114e3c3c..bf16ffb4d21e 100644 --- a/drivers/watchdog/softdog.c +++ b/drivers/watchdog/softdog.c @@ -48,6 +48,7 @@ #include <linux/init.h> #include <linux/jiffies.h> #include <linux/uaccess.h> +#include <linux/kernel.h> #define PFX "SoftDog: " @@ -75,6 +76,11 @@ MODULE_PARM_DESC(soft_noboot, "Softdog action, set to 1 to ignore reboots, 0 to reboot " "(default depends on ONLY_TESTING)"); +static int soft_panic; +module_param(soft_panic, int, 0); +MODULE_PARM_DESC(soft_panic, + "Softdog action, set to 1 to panic, 0 to reboot (default=0)"); + /* * Our timer */ @@ -98,7 +104,10 @@ static void watchdog_fire(unsigned long data) if (soft_noboot) printk(KERN_CRIT PFX "Triggered - Reboot ignored.\n"); - else { + else if (soft_panic) { + printk(KERN_CRIT PFX "Initiating panic.\n"); + panic("Software Watchdog Timer expired."); + } else { printk(KERN_CRIT PFX "Initiating system reboot.\n"); emergency_restart(); printk(KERN_CRIT PFX "Reboot didn't ?????\n"); @@ -267,7 +276,8 @@ static struct notifier_block softdog_notifier = { }; static char banner[] __initdata = KERN_INFO "Software Watchdog Timer: 0.07 " - "initialized. soft_noboot=%d soft_margin=%d sec (nowayout= %d)\n"; + "initialized. soft_noboot=%d soft_margin=%d sec soft_panic=%d " + "(nowayout= %d)\n"; static int __init watchdog_init(void) { @@ -298,7 +308,7 @@ static int __init watchdog_init(void) return ret; } - printk(banner, soft_noboot, soft_margin, nowayout); + printk(banner, soft_noboot, soft_margin, soft_panic, nowayout); return 0; } diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c index 1bc493848ed4..87e0527669d8 100644 --- a/drivers/watchdog/sp5100_tco.c +++ b/drivers/watchdog/sp5100_tco.c @@ -42,6 +42,7 @@ #define PFX TCO_MODULE_NAME ": " /* internal variables */ +static u32 tcobase_phys; static void __iomem *tcobase; static unsigned int pm_iobase; static DEFINE_SPINLOCK(tco_lock); /* Guards the hardware */ @@ -305,10 +306,18 @@ static unsigned char __devinit sp5100_tco_setupdevice(void) /* Low three bits of BASE0 are reserved. */ val = val << 8 | (inb(SP5100_IO_PM_DATA_REG) & 0xf8); + if (!request_mem_region_exclusive(val, SP5100_WDT_MEM_MAP_SIZE, + "SP5100 TCO")) { + printk(KERN_ERR PFX "mmio address 0x%04x already in use\n", + val); + goto unreg_region; + } + tcobase_phys = val; + tcobase = ioremap(val, SP5100_WDT_MEM_MAP_SIZE); if (tcobase == 0) { printk(KERN_ERR PFX "failed to get tcobase address\n"); - goto unreg_region; + goto unreg_mem_region; } /* Enable watchdog decode bit */ @@ -346,7 +355,8 @@ static unsigned char __devinit sp5100_tco_setupdevice(void) /* Done */ return 1; - iounmap(tcobase); +unreg_mem_region: + release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE); unreg_region: release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE); exit: @@ -401,6 +411,7 @@ static int __devinit sp5100_tco_init(struct platform_device *dev) exit: iounmap(tcobase); + release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE); release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE); return ret; } @@ -414,6 +425,7 @@ static void __devexit sp5100_tco_cleanup(void) /* Deregister */ misc_deregister(&sp5100_tco_miscdev); iounmap(tcobase); + release_mem_region(tcobase_phys, SP5100_WDT_MEM_MAP_SIZE); release_region(pm_iobase, SP5100_PM_IOPORTS_SIZE); } diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c index 0a0efe713bc8..0d80e08b6439 100644 --- a/drivers/watchdog/sp805_wdt.c +++ b/drivers/watchdog/sp805_wdt.c @@ -90,7 +90,7 @@ static void wdt_setload(unsigned int timeout) /* * sp805 runs counter with given value twice, after the end of first * counter it gives an interrupt and then starts counter again. If - * interrupt already occured then it resets the system. This is why + * interrupt already occurred then it resets the system. This is why * load is half of what should be required. */ load = div_u64(rate, 2) * timeout - 1; |