From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Tue, 14 Sep 2021 16:42:51 +0000 (+0200)
Subject: mt76: mt7915: fix possible infinite loop release semaphore
X-Git-Tag: v5.14.19~392
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c6abb9533969fa88abcf22a956be49f5e972a9f;p=thirdparty%2Fkernel%2Fstable.git

mt76: mt7915: fix possible infinite loop release semaphore

[ Upstream commit e500c9470e26be66eb2bc6de773ae9091149118a ]

Fix possible infinite loop in mt7915_load_patch if
mt7915_mcu_patch_sem_ctrl always returns an error.

Fixes: e57b7901469fc ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index e7e396f58c92c..85c9c08ee2a82 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -2790,7 +2790,7 @@ out:
 	default:
 		ret = -EAGAIN;
 		dev_err(dev->mt76.dev, "Failed to release patch semaphore\n");
-		goto out;
+		break;
 	}
 	release_firmware(fw);