From dbcc574a4bfad810ce6e118f3cf327c7b6e7c897 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
Date: Mon, 19 Aug 2019 06:17:33 +0000
Subject: drm/etnaviv: fix missing unlock on error in
etnaviv_iommuv1_context_alloc()
Git-commit: dbcc574a4bfad810ce6e118f3cf327c7b6e7c897
Patch-mainline: v5.4-rc1
References: bsc#1152489
Add the missing unlock before return from function etnaviv_iommuv1_context_alloc()
in the error handling case.
Fixes: 27b67278e007 ("drm/etnaviv: rework MMU handling")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/etnaviv/etnaviv_iommu.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu.c b/drivers/gpu/drm/etnaviv/etnaviv_iommu.c
index aac8dbf3ea56..1a7c89a67bea 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_iommu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu.c
@@ -140,8 +140,10 @@ etnaviv_iommuv1_context_alloc(struct etnaviv_iommu_global *global)
}
v1_context = kzalloc(sizeof(*v1_context), GFP_KERNEL);
- if (!v1_context)
+ if (!v1_context) {
+ mutex_unlock(&global->lock);
return NULL;
+ }
v1_context->pgtable_cpu = dma_alloc_wc(global->dev, PT_SIZE,
&v1_context->pgtable_dma,
--
2.28.0