diff options
Diffstat (limited to 'arch/sh/include/asm/checksum_32.h')
| -rw-r--r-- | arch/sh/include/asm/checksum_32.h | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/arch/sh/include/asm/checksum_32.h b/arch/sh/include/asm/checksum_32.h index e8bf84d3b843..a08e8eb924ed 100644 --- a/arch/sh/include/asm/checksum_32.h +++ b/arch/sh/include/asm/checksum_32.h @@ -50,15 +50,16 @@ __wsum csum_partial_copy_nocheck(const void *src, void *dst, int len) #define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER static inline -__wsum csum_and_copy_from_user(const void __user *src, void *dst, - int len, __wsum sum, int *err_ptr) +__wsum csum_and_copy_from_user(const void __user *src, void *dst, int len) { - if (access_ok(src, len)) - return csum_partial_copy_generic((__force const void *)src, dst, - len, sum, err_ptr, NULL); - if (len) - *err_ptr = -EFAULT; - return sum; + int err = 0; + __wsum sum = ~0U; + + if (!access_ok(src, len)) + return 0; + sum = csum_partial_copy_generic((__force const void *)src, dst, + len, sum, &err, NULL); + return err ? 0 : sum; } /* @@ -199,16 +200,15 @@ static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr, #define HAVE_CSUM_COPY_USER static inline __wsum csum_and_copy_to_user(const void *src, void __user *dst, - int len, __wsum sum, - int *err_ptr) + int len) { - if (access_ok(dst, len)) - return csum_partial_copy_generic((__force const void *)src, - dst, len, sum, NULL, err_ptr); - - if (len) - *err_ptr = -EFAULT; - - return (__force __wsum)-1; /* invalid checksum */ + int err = 0; + __wsum sum = ~0U; + + if (!access_ok(dst, len)) + return 0; + sum = csum_partial_copy_generic((__force const void *)src, + dst, len, sum, NULL, &err); + return err ? 0 : sum; } #endif /* __ASM_SH_CHECKSUM_H */ |