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authorFabian Frederick <fabf@skynet.be>2014-08-08 14:20:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-08 15:57:20 -0700
commit8e19189ef8d1fce44f3acdf0fe9846cff9b37c78 (patch)
tree0c4af0f63e37fa6353cf71002a4e500d5c5a0365 /fs/coda
parent6d6747f85314687f72012ae85cde401db531e130 (diff)
downloadlinux-8e19189ef8d1fce44f3acdf0fe9846cff9b37c78.tar.bz2
fs/befs/linuxvfs.c: check superblock before dump operation
befs_dump_super_block was called between befs_load_sb and befs_check_sb. It has been reported to crash (5/900) with null block testing. This patch loads, checks and only dump superblock if it's a valid one then brelse bh. (befs_dump_super_block uses disk_sb (bh->b_data) so it seems we need to call it before brelse(bh) but I don't know why befs_check_sb was called after brelse. Another thing I don't understand is why this problem appears now). Signed-off-by: Fabian Frederick <fabf@skynet.be> Reported-by: Fengguang Wu <fengguang.wu@intel.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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