From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Tue, 2 Sep 2014 19:50:43 +0000 (-0400)
Subject: HID: thingm: set the proper error code before leaving
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=e4cf19ffe060e75d34c007565d0aef7189ec654e;p=deliverable%2Flinux.git

HID: thingm: set the proper error code before leaving

In case of an unsupported firmware, the driver bails out without setting
the LEDs interfaces, but forget to set the proper error code.
err is then still equal to 0 and the hid subsytem consider the device
to be in perfect shape.
When removing it, thingm_remove() tries to unbind the rgb LEDs which
has not been created, leading to a segfault.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

diff --git a/drivers/hid/hid-thingm.c b/drivers/hid/hid-thingm.c
index 134be89b15ea..f91f97144ace 100644
--- a/drivers/hid/hid-thingm.c
+++ b/drivers/hid/hid-thingm.c
@@ -250,6 +250,7 @@ static int thingm_probe(struct hid_device *hdev, const struct hid_device_id *id)
 
 	if (!tdev->fwinfo) {
 		hid_err(hdev, "unsupported firmware %c\n", tdev->version.major);
+		err = -ENODEV;
 		goto stop;
 	}