[PATCH] HID: nintendo: unlock on error in joycon_leds_create()

Subsystems: hid core layer, nintendo hid driver, the rest

STALE1782d

2 messages, 2 authors, 2021-11-10 · open the first message on its own page

[PATCH] HID: nintendo: unlock on error in joycon_leds_create()

From: Dan Carpenter <hidden>
Date: 2021-11-10 08:12:28

These two error paths need to drop the lock before returning.

Fixes: c5e626769563 ("HID: nintendo: add player led support")
Signed-off-by: Dan Carpenter <redacted>
---
 drivers/hid/hid-nintendo.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c
index a1e0f6849875..7e1d1127493e 100644
--- a/drivers/hid/hid-nintendo.c
+++ b/drivers/hid/hid-nintendo.c
@@ -1850,8 +1850,10 @@ static int joycon_leds_create(struct joycon_ctlr *ctlr)
 				      d_name,
 				      "green",
 				      joycon_player_led_names[i]);
-		if (!name)
+		if (!name) {
+			mutex_unlock(&joycon_input_num_mutex);
 			return -ENOMEM;
+		}
 
 		led = &ctlr->leds[i];
 		led->name = name;
@@ -1864,6 +1866,7 @@ static int joycon_leds_create(struct joycon_ctlr *ctlr)
 		ret = devm_led_classdev_register(&hdev->dev, led);
 		if (ret) {
 			hid_err(hdev, "Failed registering %s LED\n", led->name);
+			mutex_unlock(&joycon_input_num_mutex);
 			return ret;
 		}
 	}
-- 
2.20.1

Re: [PATCH] HID: nintendo: unlock on error in joycon_leds_create()

From: Jiri Kosina <jikos@kernel.org>
Date: 2021-11-10 09:02:49

On Wed, 10 Nov 2021, Dan Carpenter wrote:
These two error paths need to drop the lock before returning.

Fixes: c5e626769563 ("HID: nintendo: add player led support")
Signed-off-by: Dan Carpenter <redacted>
Thanks for spotting it; applied.

-- 
Jiri Kosina
SUSE Labs
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