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authorAndrey Vagin <avagin@openvz.org>2013-04-09 17:33:29 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2013-04-09 14:09:50 -0400
commite9c5d8a562f01b211926d70443378eb14b29a676 (patch)
tree7cd74c19415b6390b44110ec3fe756deaabd15d3 /Documentation/kbuild
parentccf932042fa7785832d8989ba1369cd7c7f5d7a1 (diff)
mnt: release locks on error path in do_loopback
do_loopback calls lock_mount(path) and forget to unlock_mount if clone_mnt or copy_mnt fails. [ 77.661566] ================================================ [ 77.662939] [ BUG: lock held when returning to user space! ] [ 77.664104] 3.9.0-rc5+ #17 Not tainted [ 77.664982] ------------------------------------------------ [ 77.666488] mount/514 is leaving the kernel with locks still held! [ 77.668027] 2 locks held by mount/514: [ 77.668817] #0: (&sb->s_type->i_mutex_key#7){+.+.+.}, at: [<ffffffff811cca22>] lock_mount+0x32/0xe0 [ 77.671755] #1: (&namespace_sem){+++++.}, at: [<ffffffff811cca3a>] lock_mount+0x4a/0xe0 Signed-off-by: Andrey Vagin <avagin@openvz.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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