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authorDavid S. Miller2016-09-23 12:46:57 +0200
committerDavid S. Miller2016-09-23 12:46:57 +0200
commitd6989d4bbe6c4d1c2a76696833a07f044e85694d (patch)
tree2d9a70d0feee4d4a20568be1b39a961fa0d27d81 /arch/metag/include/asm/uaccess.h
parentxen-netback: switch to threaded irq for control ring (diff)
parentMerge tag 'media/v4.8-7' of git://git.kernel.org/pub/scm/linux/kernel/git/mch... (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch/metag/include/asm/uaccess.h')
-rw-r--r--arch/metag/include/asm/uaccess.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/metag/include/asm/uaccess.h b/arch/metag/include/asm/uaccess.h
index 8282cbce7e39..273e61225c27 100644
--- a/arch/metag/include/asm/uaccess.h
+++ b/arch/metag/include/asm/uaccess.h
@@ -204,8 +204,9 @@ extern unsigned long __must_check __copy_user_zeroing(void *to,
static inline unsigned long
copy_from_user(void *to, const void __user *from, unsigned long n)
{
- if (access_ok(VERIFY_READ, from, n))
+ if (likely(access_ok(VERIFY_READ, from, n)))
return __copy_user_zeroing(to, from, n);
+ memset(to, 0, n);
return n;
}