Commit 8e4b7205 authored Sep 17, 2016 by Guenter Roeck

openrisc: fix the fix of copy_from_user()



Since commit acb2505d ("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: acb2505d ("openrisc: fix copy_from_user()")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

parent 65c0044c

arch/openrisc/include/asm/uaccess.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -276,7 +276,7 @@ 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;