4.19-stable review patch. If anyone has any objections, please let me know.
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From: Hans Verkuil hverkuil-cisco@xs4all.nl
[ Upstream commit 3df55cd773e8603b623425cc97b05e542854ad27 ]
If pdev is NULL, then it is still dereferenced.
This fixes this smatch warning:
drivers/media/platform/mediatek/vpu/mtk_vpu.c:570 vpu_load_firmware() warn: address of NULL pointer 'pdev'
Signed-off-by: Hans Verkuil hverkuil-cisco@xs4all.nl Cc: Yunfei Dong yunfei.dong@mediatek.com Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/mtk-vpu/mtk_vpu.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/mtk-vpu/mtk_vpu.c b/drivers/media/platform/mtk-vpu/mtk_vpu.c index 9b57fb2857285..46ec1f2699aa7 100644 --- a/drivers/media/platform/mtk-vpu/mtk_vpu.c +++ b/drivers/media/platform/mtk-vpu/mtk_vpu.c @@ -537,16 +537,18 @@ static int load_requested_vpu(struct mtk_vpu *vpu, int vpu_load_firmware(struct platform_device *pdev) { struct mtk_vpu *vpu; - struct device *dev = &pdev->dev; + struct device *dev; struct vpu_run *run; const struct firmware *vpu_fw = NULL; int ret;
if (!pdev) { - dev_err(dev, "VPU platform device is invalid\n"); + pr_err("VPU platform device is invalid\n"); return -EINVAL; }
+ dev = &pdev->dev; + vpu = platform_get_drvdata(pdev); run = &vpu->run;