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authorMichal Simek <monstr@monstr.eu>2010-03-08 09:38:02 +0100
committerMichal Simek <monstr@monstr.eu>2010-04-01 08:38:21 +0200
commit40e11e3380d4bd14bb3d85c7e7b863075a6a8d86 (patch)
tree00d33e5bb3071a4f93e913d6c527da95888f18a6 /arch/microblaze
parent4270690bd4b1420a8d634ea31953a1c4def2a44a (diff)
microblaze: uaccess: Fix strncpy_from_user function
Generic implementation for noMMU and MMU version Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/include/asm/uaccess.h14
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h
index b56d8ae9b17..fe954b394fd 100644
--- a/arch/microblaze/include/asm/uaccess.h
+++ b/arch/microblaze/include/asm/uaccess.h
@@ -407,11 +407,19 @@ static inline long copy_to_user(void __user *to,
}
extern int __strncpy_user(char *to, const char __user *from, int len);
+
+#define __strncpy_from_user __strncpy_user
+
+static inline long
+strncpy_from_user(char *dst, const char __user *src, long count)
+{
+ if (!access_ok(VERIFY_READ, src, 1))
+ return -EFAULT;
+ return __strncpy_from_user(dst, src, count);
+}
+
extern int __strnlen_user(const char __user *sstr, int len);
-#define strncpy_from_user(to, from, len) \
- (access_ok(VERIFY_READ, from, 1) ? \
- __strncpy_user(to, from, len) : -EFAULT)
#define strnlen_user(str, len) \
(access_ok(VERIFY_READ, str, 1) ? __strnlen_user(str, len) : 0)