parisc: avoid unitialized variable warning in pa_memcpy()

Avoid this warning, while still prevent gcc from optimizing away the exception code:
arch/parisc/lib/memcpy.c: In function ‘pa_memcpy’:
arch/parisc/lib/memcpy.c:256:2: warning: ‘dummy’ may be used uninitialized in this function [-Wuninitialized]

Signed-off-by: Helge Deller <deller@gmx.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 1dbca5c31b3c..a49cc812df8a 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -68,7 +68,7 @@
 DECLARE_PER_CPU(struct exception_data, exception_data);
 
 #define preserve_branch(label)  do {                                    \
-        volatile int dummy;                                             \
+        volatile int dummy = 0;                                         \
         /* The following branch is never taken, it's just here to  */   \
         /* prevent gcc from optimizing away our exception code. */      \
         if (unlikely(dummy != dummy))                                   \