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[PATCH] md: fix oops in error-handling

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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: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton 2006-07-10 04:44:20 -07:00 committed by Linus Torvalds
parent d695043259
commit d0a0a5ee7a
1 changed files with 2 additions and 0 deletions
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2
drivers/md/md.c
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@ -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);