From 654e8b5abc0a793f0c029128db6e4804691a383e Mon Sep 17 00:00:00 2001 From: Jonathan Brassow Date: Wed, 27 Jul 2011 11:00:36 +1000 Subject: [PATCH] MD: raid1 s/sysfs_notify_dirent/sysfs_notify_dirent_safe If device-mapper creates a RAID1 array that includes devices to be rebuilt, it will deref a NULL pointer when finished because sysfs is not used by device-mapper instantiated RAID devices. Signed-off-by: Jonathan Brassow Signed-off-by: NeilBrown --- drivers/md/raid1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index a7e69081187f..3cbf0ac2aaad 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1031,7 +1031,7 @@ static int raid1_spare_active(mddev_t *mddev) && !test_bit(Faulty, &rdev->flags) && !test_and_set_bit(In_sync, &rdev->flags)) { count++; - sysfs_notify_dirent(rdev->sysfs_state); + sysfs_notify_dirent_safe(rdev->sysfs_state); } } spin_lock_irqsave(&conf->device_lock, flags);