[PATCH] Fix oops in vfs_quotaon_mount()
When quota file specified in mount options did not exist, we tried to dereference NULL pointer later. Fix it. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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