[PATCH] media: cedrus: Fix a NULL vs IS_ERR() check

From: Dan Carpenter
Date: Mon Nov 26 2018 - 03:11:31 EST


The devm_ioremap_resource() function doesn't return NULL pointers, it
returns error pointers.

Fixes: 50e761516f2b ("media: platform: Add Cedrus VPU decoder driver")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/staging/media/sunxi/cedrus/cedrus_hw.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_hw.c b/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
index 32adbcbe6175..07520a2ce179 100644
--- a/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
+++ b/drivers/staging/media/sunxi/cedrus/cedrus_hw.c
@@ -255,10 +255,10 @@ int cedrus_hw_probe(struct cedrus_dev *dev)

res = platform_get_resource(dev->pdev, IORESOURCE_MEM, 0);
dev->base = devm_ioremap_resource(dev->dev, res);
- if (!dev->base) {
+ if (IS_ERR(dev->base)) {
v4l2_err(&dev->v4l2_dev, "Failed to map registers\n");

- ret = -ENOMEM;
+ ret = PTR_ERR(dev->base);
goto err_sram;
}

--
2.11.0