[PATCH] dell-laptop - using buffer without mutex_lock

Jose Alonso
2011-07-08T22:01:33Z

Using buffer->output[1] without mutex_lock()

--- linux-3.0-rc6/drivers/platform/x86/dell-laptop.c.ORIG
2011-07-04 19:56:24.000000000 -0300
+++ linux-3.0-rc6/drivers/platform/x86/dell-laptop.c 2011-07-08
18:27:02.420791868 -0300
@@ -560,11 +560,11 @@
else
dell_send_request(buffer, 0, 1);

+ ret = buffer->output[1];
+
out:
release_buffer();
- if (ret)
- return ret;
- return buffer->output[1];
+ return ret;
}

static const struct backlight_ops dell_ops = {