dmaengine: sprd: fix an NULL vs IS_ERR() bug
We recently cleaned this code up but we need to update the error
handling as well. The devm_ioremap_resource() returns error pointers on
error, never NULL.
Fixes: e7f063ae1a31 ("dmaengine: sprd: Use devm_ioremap_resource() to map memory")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Vinod Koul <vkoul@kernel.org>
diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
index e715d07..36df3b0 100644
--- a/drivers/dma/sprd-dma.c
+++ b/drivers/dma/sprd-dma.c
@@ -808,8 +808,8 @@
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
sdev->glb_base = devm_ioremap_resource(&pdev->dev, res);
- if (!sdev->glb_base)
- return -ENOMEM;
+ if (IS_ERR(sdev->glb_base))
+ return PTR_ERR(sdev->glb_base);
dma_cap_set(DMA_MEMCPY, sdev->dma_dev.cap_mask);
sdev->total_chns = chn_count;