[ARM] Fix context switch with ARMv6 + TLS

We accidentally corrupted the TLS value when clearing out the ARMv6
exclusive monitor.  Avoid doing so.

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

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 7152bfb..93b5e8e 100644 (file)
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -537,7 +537,7 @@ ENTRY(__switch_to)
 #ifdef CONFIG_CPU_MPCORE
        clrex
 #else
-       strex   r3, r4, [ip]                    @ Clear exclusive monitor
+       strex   r5, r4, [ip]                    @ Clear exclusive monitor
 #endif
 #endif
 #if defined(CONFIG_CPU_XSCALE) && !defined(CONFIG_IWMMXT)