On Mo, 2019-08-19 at 06:17 +0000, Wei Yongjun wrote:
> 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 <weiyongj...@huawei.com>
Thanks, applied.
For my education, can you tell me which tool you did use to catch this
issue?
Regards,
Lucas
> ---
> 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,
>
>
>
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