From: Jiasheng Jiang jiashengjiangcool@gmail.com
[ Upstream commit 4936cd5817af35d23e4d283f48fa59a18ef481e4 ]
On Mediatek devices with a system companion processor (SCP) the mtk_scp structure has to be removed explicitly to avoid a resource leak. Free the structure in case the allocation of the firmware structure fails during the firmware initialization.
Fixes: 53dbe0850444 ("media: mtk-vcodec: potential null pointer deference in SCP") Cc: stable@vger.kernel.org Signed-off-by: Jiasheng Jiang jiashengjiangcool@gmail.com Signed-off-by: Hans Verkuil hverkuil@xs4all.nl [ Adapted file path ] Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_scp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_scp.c b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_scp.c index 27f08b1d34d19..e13f09d883543 100644 --- a/drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_scp.c +++ b/drivers/media/platform/mediatek/vcodec/mtk_vcodec_fw_scp.c @@ -65,8 +65,10 @@ struct mtk_vcodec_fw *mtk_vcodec_fw_scp_init(struct mtk_vcodec_dev *dev) }
fw = devm_kzalloc(&dev->plat_dev->dev, sizeof(*fw), GFP_KERNEL); - if (!fw) + if (!fw) { + scp_put(scp); return ERR_PTR(-ENOMEM); + } fw->type = SCP; fw->ops = &mtk_vcodec_rproc_msg; fw->scp = scp;