diff options
Diffstat (limited to 'arch/microblaze')
| -rw-r--r-- | arch/microblaze/include/asm/uaccess.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index b56d8ae9b17e..fe954b394fdc 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) |