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| author | Guenter Roeck <linux@roeck-us.net> | 2016-09-17 12:57:24 -0700 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2016-11-20 01:01:41 +0000 |
| commit | 801cbc88bdfa268dcd888163e2983c802cbc853a (patch) | |
| tree | b3a49213f2632d5ac7ca0bdff149184cb6a27fba | |
| parent | fcb587770f0cef0c6ebe0c087769f50e8f7197cf (diff) | |
| download | lwn-801cbc88bdfa268dcd888163e2983c802cbc853a.tar.gz lwn-801cbc88bdfa268dcd888163e2983c802cbc853a.zip | |
openrisc: fix the fix of copy_from_user()
commit 8e4b72054f554967827e18be1de0e8122e6efc04 upstream.
Since commit acb2505d0119 ("openrisc: fix copy_from_user()"),
copy_from_user() returns the number of bytes requested, not the
number of bytes not copied.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Fixes: acb2505d0119 ("openrisc: fix copy_from_user()")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | arch/openrisc/include/asm/uaccess.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/openrisc/include/asm/uaccess.h b/arch/openrisc/include/asm/uaccess.h index 0bcc64803dc1..1acfe52f6929 100644 --- a/arch/openrisc/include/asm/uaccess.h +++ b/arch/openrisc/include/asm/uaccess.h @@ -277,7 +277,7 @@ copy_from_user(void *to, const void *from, unsigned long n) unsigned long res = n; if (likely(access_ok(VERIFY_READ, from, n))) - n = __copy_tofrom_user(to, from, n); + res = __copy_tofrom_user(to, from, n); if (unlikely(res)) memset(to + (n - res), 0, res); return res; |