From: Boris Brezillon boris.brezillon@collabora.com
commit 3bb69dbcb9e8430e0cc9990cff427ca3ae25ffdc upstream.
We should release the reference we grabbed when an error occurs.
Fixes: 187d2929206e ("drm/panfrost: Add support for GPU heap allocations") Cc: stable@vger.kernel.org Signed-off-by: Boris Brezillon boris.brezillon@collabora.com Reviewed-by: Steven Price steven.price@arm.com Acked-by: Alyssa Rosenzweig alyssa.rosenzweig@collabora.com Signed-off-by: Rob Herring robh@kernel.org Link: https://patchwork.freedesktop.org/patch/msgid/20191129135908.2439529-4-boris... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/gpu/drm/panfrost/panfrost_drv.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
--- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -303,14 +303,17 @@ static int panfrost_ioctl_mmap_bo(struct }
/* Don't allow mmapping of heap objects as pages are not pinned. */ - if (to_panfrost_bo(gem_obj)->is_heap) - return -EINVAL; + if (to_panfrost_bo(gem_obj)->is_heap) { + ret = -EINVAL; + goto out; + }
ret = drm_gem_create_mmap_offset(gem_obj); if (ret == 0) args->offset = drm_vma_node_offset_addr(&gem_obj->vma_node); - drm_gem_object_put_unlocked(gem_obj);
+out: + drm_gem_object_put_unlocked(gem_obj); return ret; }