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authorDarren Hart <dvhltc@us.ibm.com>2009-03-12 00:56:06 -0700
committerIngo Molnar <mingo@elte.hu>2009-03-12 11:20:57 +0100
commite8f6386c01a5699c115bdad10271a24076364c97 (patch)
tree7375a9b8961c0e0fd8e25176c7912375aaaa4d1e /kernel/auditsc.c
parent16f4993f4e9860715918efd4eeac928f8de1218b (diff)
futex: unlock before returning -EFAULT
Impact: rt-mutex failure case fix futex_lock_pi can potentially return -EFAULT with the rt_mutex held. This seems like the wrong thing to do as userspace should assume -EFAULT means the lock was not taken. Even if it could figure this out, we'd be leaving the pi_state->owner in an inconsistent state. This patch unlocks the rt_mutex prior to returning -EFAULT to userspace. Build and boot tested on a 4 way Intel x86_64 workstation. Passes basic pthread_mutex and PI tests out of ltp/testcases/realtime. Signed-off-by: Darren Hart <dvhltc@us.ibm.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Rusty Russell <rusty@rustcorp.com.au> LKML-Reference: <20090312075606.9856.88729.stgit@Aeon> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/auditsc.c')
0 files changed, 0 insertions, 0 deletions