[PATCH] POWERPC: Fix uninitialized variable bug in copy_{to|from}_user
DORMANTno replies
From: Nate Case <hidden>
Date: 2008-05-12 20:14:19
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 <redacted> Signed-off-by: Nate Case <redacted> --- 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