From: YoungJun Cho Date: Wed, 26 Jun 2013 01:21:40 +0000 (+0900) Subject: drm/prime: fix to put an exported dma_buf for adding handle failure X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7d8f06ac901300e0b517a263f571531ca27e47b6;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/prime: fix to put an exported dma_buf for adding handle failure When drm_prime_add_buf_handle() returns failure for an exported dma_buf, the dma_buf was already allocated and its refcount was increased, so it needs to be put. Signed-off-by: YoungJun Cho Signed-off-by: Seung-Woo Kim Signed-off-by: Kyungmin Park Signed-off-by: Dave Airlie --- diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index b1cd47438850..340caabc0424 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -306,7 +306,7 @@ int drm_gem_prime_handle_to_fd(struct drm_device *dev, ret = drm_prime_add_buf_handle(&file_priv->prime, obj->export_dma_buf, handle); if (ret) - goto out; + goto fail_put_dmabuf; *prime_fd = dma_buf_fd(buf, flags); mutex_unlock(&file_priv->prime.lock); @@ -315,6 +315,12 @@ int drm_gem_prime_handle_to_fd(struct drm_device *dev, out_have_obj: get_dma_buf(dmabuf); *prime_fd = dma_buf_fd(dmabuf, flags); + goto out; + +fail_put_dmabuf: + /* clear NOT to be checked when releasing dma_buf */ + obj->export_dma_buf = NULL; + dma_buf_put(buf); out: drm_gem_object_unreference_unlocked(obj); mutex_unlock(&file_priv->prime.lock);