From: Rob Gardner Date: Tue, 3 Mar 2015 06:16:55 +0000 (-0700) Subject: sparc: semtimedop() unreachable due to comparison error X-Git-Tag: v3.12.40~142 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=028ba5bacba6cfebc2d5dc07f50b5ed9acb6e513;p=thirdparty%2Fkernel%2Fstable.git sparc: semtimedop() unreachable due to comparison error [ Upstream commit 53eb2516972b8c4628651dfcb926cb9ef8b2864a ] A bug was reported that the semtimedop() system call was always failing eith ENOSYS. Since SEMCTL is defined as 3, and SEMTIMEDOP is defined as 4, the comparison "call <= SEMCTL" will always prevent SEMTIMEDOP from getting through to the semaphore ops switch statement. This is corrected by changing the comparison to "call <= SEMTIMEDOP". Orabug: 20633375 Signed-off-by: Rob Gardner Signed-off-by: David S. Miller Signed-off-by: Jiri Slaby --- diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index d05eb9c1d8465..d188c591f2d62 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -331,7 +331,7 @@ SYSCALL_DEFINE6(sparc_ipc, unsigned int, call, int, first, unsigned long, second long err; /* No need for backward compatibility. We can start fresh... */ - if (call <= SEMCTL) { + if (call <= SEMTIMEDOP) { switch (call) { case SEMOP: err = sys_semtimedop(first, ptr,