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authorAl Viro <viro@ZenIV.linux.org.uk>2013-05-03 00:30:49 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2013-05-02 19:51:31 -0700
commitce857229e0c3adc211944a13a5579ef84fd7b4af (patch)
treef12310c2c6492dd7ef4b25dd0c6052f7a114b9cf /kernel/time
parent20a2078ce7705a6e0722ef5184336eb8657a58d8 (diff)
downloadlinaro-lsk-ce857229e0c3adc211944a13a5579ef84fd7b4af.tar.gz
ipc: fix GETALL/IPC_RM race for sysv semaphores
We can step on WARN_ON_ONCE() in sem_getref() if a semaphore is removed just as we are about to call sem_getref() from semctl_main(); results are not pretty. We should fail with -EIDRM, same as if IPC_RM happened while we'd been doing allocation there. This also expands sem_getref() at its only callsite (and fixed there), while sem_getref_and_unlock() is simply killed off - it has no callers at all. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Davidlohr Bueso <davidlohr.bueso@hp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/time')
0 files changed, 0 insertions, 0 deletions