powerpc: Fix lockdep IRQ tracing bug

A small bogon sneaked into the ppc64 lockdep support.  A test is
branching slightly off causing a clobbered register value to
overwrite the irq state under some circumstances.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/arch/powerpc/include/asm/irqflags.h b/arch/powerpc/include/asm/irqflags.h
index 17ba3a881bfd..5f68ecfdf516 100644
--- a/arch/powerpc/include/asm/irqflags.h
+++ b/arch/powerpc/include/asm/irqflags.h
@@ -20,7 +20,7 @@
 #define TRACE_ENABLE_INTS       bl .trace_hardirqs_on
 #define TRACE_DISABLE_INTS      bl .trace_hardirqs_off
 #define TRACE_AND_RESTORE_IRQ_PARTIAL(en,skip)  \
-        cmpdi   en, 0;                          \
+        cmpdi   en,0;                           \
         bne     95f;                            \
         stb     en,PACASOFTIRQEN(r13);          \
         bl      .trace_hardirqs_off;            \
@@ -29,7 +29,8 @@
         li      en,1;
 #define TRACE_AND_RESTORE_IRQ(en)               \
         TRACE_AND_RESTORE_IRQ_PARTIAL(en,96f);  \
-96:     stb     en,PACASOFTIRQEN(r13)
+        stb     en,PACASOFTIRQEN(r13);          \
+96:
 #else
 #define TRACE_ENABLE_INTS
 #define TRACE_DISABLE_INTS