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| author | Shang XiaoJing <shangxiaojing@huawei.com> | 2022-11-13 07:45:13 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2022-11-26 01:07:37 +0100 |
| commit | e6f108bffc3708ddcff72324f7d40dfcd0204894 (patch) | |
| tree | 05b9b8fee84bc9ff0d57d791fc64feb30ec684ba /drivers/scsi/ipr.c | |
| parent | scsi: scsi_debug: Fix possible name leak in sdebug_add_host_helper() (diff) | |
| download | linux-e6f108bffc3708ddcff72324f7d40dfcd0204894.tar.xz linux-e6f108bffc3708ddcff72324f7d40dfcd0204894.zip | |
scsi: ipr: Fix WARNING in ipr_init()
ipr_init() will not call unregister_reboot_notifier() when
pci_register_driver() fails, which causes a WARNING. Call
unregister_reboot_notifier() when pci_register_driver() fails.
notifier callback ipr_halt [ipr] already registered
WARNING: CPU: 3 PID: 299 at kernel/notifier.c:29
notifier_chain_register+0x16d/0x230
Modules linked in: ipr(+) xhci_pci_renesas xhci_hcd ehci_hcd usbcore
led_class gpu_sched drm_buddy video wmi drm_ttm_helper ttm
drm_display_helper drm_kms_helper drm drm_panel_orientation_quirks
agpgart cfbft
CPU: 3 PID: 299 Comm: modprobe Tainted: G W
6.1.0-rc1-00190-g39508d23b672-dirty #332
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014
RIP: 0010:notifier_chain_register+0x16d/0x230
Call Trace:
<TASK>
__blocking_notifier_chain_register+0x73/0xb0
ipr_init+0x30/0x1000 [ipr]
do_one_initcall+0xdb/0x480
do_init_module+0x1cf/0x680
load_module+0x6a50/0x70a0
__do_sys_finit_module+0x12f/0x1c0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Fixes: f72919ec2bbb ("[SCSI] ipr: implement shutdown changes and remove obsolete write cache parameter")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Link: https://lore.kernel.org/r/20221113064513.14028-1-shangxiaojing@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ipr.c')
| -rw-r--r-- | drivers/scsi/ipr.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 9d01a3e3c26a..2022ffb45041 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -10872,11 +10872,19 @@ static struct notifier_block ipr_notifier = { **/ static int __init ipr_init(void) { + int rc; + ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", IPR_DRIVER_VERSION, IPR_DRIVER_DATE); register_reboot_notifier(&ipr_notifier); - return pci_register_driver(&ipr_driver); + rc = pci_register_driver(&ipr_driver); + if (rc) { + unregister_reboot_notifier(&ipr_notifier); + return rc; + } + + return 0; } /** |