diff options
Diffstat (limited to 'include/linux/sockptr.h')
| -rw-r--r-- | include/linux/sockptr.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/sockptr.h b/include/linux/sockptr.h index fc5a206c4043..3e6c8e9d67ae 100644 --- a/include/linux/sockptr.h +++ b/include/linux/sockptr.h @@ -53,6 +53,8 @@ static inline int copy_from_sockptr_offset(void *dst, sockptr_t src, /* Deprecated. * This is unsafe, unless caller checked user provided optlen. * Prefer copy_safe_from_sockptr() instead. + * + * Returns 0 for success, or number of bytes not copied on error. */ static inline int copy_from_sockptr(void *dst, sockptr_t src, size_t size) { @@ -77,7 +79,9 @@ static inline int copy_safe_from_sockptr(void *dst, size_t ksize, { if (optlen < ksize) return -EINVAL; - return copy_from_sockptr(dst, optval, ksize); + if (copy_from_sockptr(dst, optval, ksize)) + return -EFAULT; + return 0; } static inline int copy_struct_from_sockptr(void *dst, size_t ksize, |