PNP: isapnp: use put_user() in the proc read loop

isapnp_proc_bus_read() checks the user buffer with access_ok() and then
copies the configuration registers one byte at a time with __put_user(),
reading each register in between.  Each of those accesses enables and
disables user access on its own, so the up-front check saves nothing.

Use put_user().  The ignored return value and the access_ok() stay as
they were.

This is part of getting rid of __get_user() and __put_user() entirely.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/pnp/isapnp/proc.c

@@ -41,7 +41,7 @@ static ssize_t isapnp_proc_bus_read(struct file *file, char __user * buf,
 	for (; pos < 256 && cnt > 0; pos++, buf++, cnt--) {
 		unsigned char val;
 		val = isapnp_read_byte(pos);
-		__put_user(val, buf);
+		put_user(val, buf);
 	}
 	isapnp_cfg_end();