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| author | Al Viro <viro@zeniv.linux.org.uk> | 2016-08-22 00:23:07 -0400 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2016-11-20 01:01:40 +0000 |
| commit | e258d3404fe81d8dd51a9a5e1b0312bfbb732d31 (patch) | |
| tree | ac632ccdf0a5cd7e7dd8f527b5552dc8bb388be5 | |
| parent | 6089b5ee9c5f2de2bae342da15afe8d4124b9ebe (diff) | |
| download | lwn-e258d3404fe81d8dd51a9a5e1b0312bfbb732d31.tar.gz lwn-e258d3404fe81d8dd51a9a5e1b0312bfbb732d31.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>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -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 8303ac481034..43c2a0df4368 100644 --- a/arch/sparc/include/asm/uaccess_32.h +++ b/arch/sparc/include/asm/uaccess_32.h @@ -264,8 +264,10 @@ 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) |