| From | Greg Kroah-Hartman <> | Subject | [PATCH 3.19 001/123] sparc: semtimedop() unreachable due to comparison error | Date | Tue, 24 Mar 2015 16:45:10 +0100 |
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3.19-stable review patch. If anyone has any objections, please let me know.
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From: Rob Gardner <rob.gardner@oracle.com>
[ 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 <rob.gardner@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- arch/sparc/kernel/sys_sparc_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -333,7 +333,7 @@ SYSCALL_DEFINE6(sparc_ipc, unsigned int, 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,
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