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authorRussell King <rmk+kernel@armlinux.org.uk>2016-10-06 08:56:43 +0100
committerRussell King <rmk+kernel@armlinux.org.uk>2016-10-06 08:56:43 +0100
commit301a36fa700f9add6e14f5a95c7573e01578343a (patch)
tree6ff94ff3b08b838353b9127eb5f8055b3de6b25f /lib/strnlen_user.c
parentb828f960215f02e5d2c88bbd27565c694254a15a (diff)
parentb60752f2b20c167859943e001727f0d4da419b23 (diff)
downloadlinux-301a36fa700f9add6e14f5a95c7573e01578343a.tar.bz2
Merge branches 'misc' and 'sa1111-base' into for-linus
Diffstat (limited to 'lib/strnlen_user.c')
-rw-r--r--lib/strnlen_user.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
index 2625943625d7..8e105ed4df12 100644
--- a/lib/strnlen_user.c
+++ b/lib/strnlen_user.c
@@ -45,8 +45,7 @@ static inline long do_strnlen_user(const char __user *src, unsigned long count,
src -= align;
max += align;
- if (unlikely(unsafe_get_user(c,(unsigned long __user *)src)))
- return 0;
+ unsafe_get_user(c, (unsigned long __user *)src, efault);
c |= aligned_byte_mask(align);
for (;;) {
@@ -61,8 +60,7 @@ static inline long do_strnlen_user(const char __user *src, unsigned long count,
if (unlikely(max <= sizeof(unsigned long)))
break;
max -= sizeof(unsigned long);
- if (unlikely(unsafe_get_user(c,(unsigned long __user *)(src+res))))
- return 0;
+ unsafe_get_user(c, (unsigned long __user *)(src+res), efault);
}
res -= align;
@@ -77,6 +75,7 @@ static inline long do_strnlen_user(const char __user *src, unsigned long count,
* Nope: we hit the address space limit, and we still had more
* characters the caller would have wanted. That's 0.
*/
+efault:
return 0;
}