[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>

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 95718a6..1bbda04 100644 (file)
--- 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;
        }