sparc: semtimedop() unreachable due to comparison error
authorRob Gardner <rob.gardner@oracle.com>
Tue, 3 Mar 2015 06:16:55 +0000 (23:16 -0700)
committerDavid S. Miller <davem@davemloft.net>
Tue, 3 Mar 2015 22:05:48 +0000 (14:05 -0800)
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>
arch/sparc/kernel/sys_sparc_64.c

index c85403d0496c24f7639a32fa06b7dc53c1559381..30e7ddb27a3a966e74e5ab79ad686bab26eab459 100644 (file)
@@ -333,7 +333,7 @@ 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,