[PATCH] POWERPC: Fix uninitialized variable bug in copy_{to|from}_user

[Nate Case]

Calls to copy_to_user() or copy_from_user() can fail
when copying N bytes, where N is a constant less than 8,
but not 1, 2, 4, or 8.

Signed-off-by: Dave Scidmore <dscidmore at xes-inc.com>
Signed-off-by: Nate Case <ncase at xes-inc.com>
---
 include/asm-powerpc/uaccess.h |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/asm-powerpc/uaccess.h b/include/asm-powerpc/uaccess.h
index 8e798e3..1a0736f 100644
--- a/include/asm-powerpc/uaccess.h
+++ b/include/asm-powerpc/uaccess.h
@@ -380,7 +380,7 @@ static inline unsigned long __copy_from_user_inatomic(void *to,
 		const void __user *from, unsigned long n)
 {
 	if (__builtin_constant_p(n) && (n <= 8)) {
-		unsigned long ret;
+		unsigned long ret = 1;
 
 		switch (n) {
 		case 1:
@@ -406,7 +406,7 @@ static inline unsigned long __copy_to_user_inatomic(void __user *to,
 		const void *from, unsigned long n)
 {
 	if (__builtin_constant_p(n) && (n <= 8)) {
-		unsigned long ret;
+		unsigned long ret = 1;
 
 		switch (n) {
 		case 1:
-- 
1.5.4.4