From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sun, 8 Nov 2009 20:05:28 +0000 (+0000)
Subject: [ARM] Fix test for unimplemented ARM syscalls
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=bfd2e29f04e5f048ea62677811d1244badd6661e;p=openwrt%2Fstaging%2Fblogic.git

[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 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;
 	}