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Commit d0a0a5ee authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds
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[PATCH] md: fix oops in error-handling 



During early MD setup (superblock reading), we don't have a personality yet.
But the error-handling code tries to dereference mddev->pers.  Fix.

Acked-by: default avatarNeil Brown <neilb@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent d6950432

drivers/md/md.c

+2 −0
Original line number Diff line number Diff line
@@ -4592,6 +4592,8 @@ void md_error(mddev_t *mddev, mdk_rdev_t *rdev) 
		__builtin_return_address(0),__builtin_return_address(1),

		__builtin_return_address(2),__builtin_return_address(3));

*/

	if (!mddev->pers)

		return;

	if (!mddev->pers->error_handler)

		return;

	mddev->pers->error_handler(mddev,rdev);