[PATCH -next] [media] VPU: mediatek: fix return value check in mtk_vpu_probe()

[weiyj_lk at 163.com]

From: Wei Yongjun <yongjun_wei at trendmicro.com.cn>

In case of error, the function devm_clk_get() returns ERR_PTR()
and not returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei at trendmicro.com.cn>
---
 drivers/media/platform/mtk-vpu/mtk_vpu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/mtk-vpu/mtk_vpu.c b/drivers/media/platform/mtk-vpu/mtk_vpu.c
index b60d02c..c8b2c72 100644
--- a/drivers/media/platform/mtk-vpu/mtk_vpu.c
+++ b/drivers/media/platform/mtk-vpu/mtk_vpu.c
@@ -788,9 +788,9 @@ static int mtk_vpu_probe(struct platform_device *pdev)
 
 	/* Get VPU clock */
 	vpu->clk = devm_clk_get(dev, "main");
-	if (!vpu->clk) {
+	if (IS_ERR(vpu->clk)) {
 		dev_err(dev, "get vpu clock failed\n");
-		return -EINVAL;
+		return PTR_ERR(vpu->clk);
 	}
 
 	platform_set_drvdata(pdev, vpu);