[ARM] Fix test for unimplemented ARM syscalls

The existing test always failed since 'no' was always greater than
0x7ff.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 95718a6b50a6..1bbda04a5380 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -573,7 +573,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
                    if not implemented, rather than raising SIGILL.  This
                    way the calling program can gracefully determine whether
                    a feature is supported.  */
-                if (no <= 0x7ff)
+                if ((no & 0xffff) <= 0x7ff)
                         return -ENOSYS;
                 break;
         }