X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Farch%2Fsh%2Finclude%2Fasm%2Fuaccess.h;h=92ade79ac4272ea22657b3aac6adfb90b1d4105f;hb=refs%2Fchanges%2F19%2F30119%2F1;hp=a49635c512665ddc6b9e70e5d944c57e26d349d6;hpb=c189ccac5702322ed843fe17057035b7222a59b6;p=kvmfornfv.git

diff --git a/kernel/arch/sh/include/asm/uaccess.h b/kernel/arch/sh/include/asm/uaccess.h
index a49635c51..92ade79ac 100644
--- a/kernel/arch/sh/include/asm/uaccess.h
+++ b/kernel/arch/sh/include/asm/uaccess.h
@@ -151,7 +151,10 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
 	__kernel_size_t __copy_size = (__kernel_size_t) n;
 
 	if (__copy_size && __access_ok(__copy_from, __copy_size))
-		return __copy_user(to, from, __copy_size);
+		__copy_size = __copy_user(to, from, __copy_size);
+
+	if (unlikely(__copy_size))
+		memset(to + (n - __copy_size), 0, __copy_size);
 
 	return __copy_size;
 }