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[PATCH] autofs4: panic after mount fail

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Resolve the panic on failed mount of an autofs filesystem originally
reported by Mao Bibo.

It addresses two issues that happen after the mount fail.  The first a NULL
pointer reference to a field (pipe) in the autofs superblock info structure
and second the lack of super block cleanup by the autofs and autofs4
modules.

Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Ian Kent
2006-11-14 02:03:29 -08:00
committed by Linus Torvalds
parent 6a34b57bec
commit ba8df43c0e
4 changed files with 32 additions and 6 deletions
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6
fs/autofs4/waitq.c
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@@ -41,10 +41,8 @@ void autofs4_catatonic_mode(struct autofs_sb_info *sbi)
wake_up_interruptible(&wq->queue);
wq = nwq;
}
if (sbi->pipe) {
fput(sbi->pipe); /* Close the pipe */
sbi->pipe = NULL;
}
fput(sbi->pipe); /* Close the pipe */
sbi->pipe = NULL;
}
static int autofs4_write(struct file *file, const void *addr, int bytes)