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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-08-22 00:23:07 -0400 |
|---|---|---|
| committer | Jiri Slaby <jslaby@suse.cz> | 2016-09-29 11:14:38 +0200 |
| commit | 0ed3b0d5028684292100726687b725d541e5a34e (patch) | |
| tree | 3a0be516259389b80b95fcfa32fded6f261dd9c3 | |
| parent | b8d635cfa41503774d0655d2ad09b12e444167bd (diff) | |
| download | lwn-0ed3b0d5028684292100726687b725d541e5a34e.tar.gz lwn-0ed3b0d5028684292100726687b725d541e5a34e.zip | |
sparc32: fix copy_from_user()
commit 917400cecb4b52b5cde5417348322bb9c8272fa6 upstream.
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
| -rw-r--r-- | arch/sparc/include/asm/uaccess_32.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h index 53a28dd59f59..01f602858de1 100644 --- a/arch/sparc/include/asm/uaccess_32.h +++ b/arch/sparc/include/asm/uaccess_32.h @@ -265,8 +265,10 @@ static inline unsigned long copy_from_user(void *to, const void __user *from, un { if (n && __access_ok((unsigned long) from, n)) return __copy_user((__force void __user *) to, from, n); - else + else { + memset(to, 0, n); return n; + } } static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) |