linux-kernel - [PATCH] drm/etnaviv: fix missing unlock on error in etnaviv_gpu

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Message-Id: <20170412003116.30767-1-weiyj.lk@gmail.com>
Date:   Wed, 12 Apr 2017 00:31:16 +0000
From:   Wei Yongjun <weiyj.lk@...il.com>
To:     Lucas Stach <l.stach@...gutronix.de>,
        Russell King <linux+etnaviv@...linux.org.uk>,
        Christian Gmeiner <christian.gmeiner@...il.com>,
        David Airlie <airlied@...ux.ie>
Cc:     Wei Yongjun <weiyongjun1@...wei.com>,
        etnaviv@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] drm/etnaviv: fix missing unlock on error in etnaviv_gpu_submit()

From: Wei Yongjun <weiyongjun1@...wei.com>

Add the missing unlock before return from function etnaviv_gpu_submit()
in the error handling case.

Fixes: f3cd1b064f11 ("drm/etnaviv: (re-)protect fence allocation with
GPU mutex")
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index da48819..e4a4d4c 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -1317,7 +1317,7 @@ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu,
 	if (!fence) {
 		event_free(gpu, event);
 		ret = -ENOMEM;
-		goto out_pm_put;
+		goto out_unlok;
 	}
 
 	gpu->event[event].fence = fence;
@@ -1357,6 +1357,7 @@ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu,
 	hangcheck_timer_reset(gpu);
 	ret = 0;
 
+out_unlok:
 	mutex_unlock(&gpu->lock);
 
 out_pm_put: