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dmaengine: stm32-dmamux: Fix a NULL vs IS_ERR() check in probe
author
Dan Carpenter
<dan.carpenter@oracle.com>
Tue, 3 Oct 2017 10:54:50 +0000
(13:54 +0300)
committer
Vinod Koul
<vinod.koul@intel.com>
Sun, 8 Oct 2017 10:47:39 +0000
(16:17 +0530)
devm_ioremap_resource() doesn't return NULL, it returns error pointers.
Fixes:
df7e762db5f6
("dmaengine: Add STM32 DMAMUX driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
drivers/dma/stm32-dmamux.c
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diff --git
a/drivers/dma/stm32-dmamux.c
b/drivers/dma/stm32-dmamux.c
index 22812e7a953b93309f8be7ca69cc3d5cd47879e8..d5db0f6e1ff886f11404ad4712cc98581167edcb 100644
(file)
--- a/
drivers/dma/stm32-dmamux.c
+++ b/
drivers/dma/stm32-dmamux.c
@@
-257,8
+257,8
@@
static int stm32_dmamux_probe(struct platform_device *pdev)
return -ENODEV;
iomem = devm_ioremap_resource(&pdev->dev, res);
- if (
!iomem
)
- return
-ENOMEM
;
+ if (
IS_ERR(iomem)
)
+ return
PTR_ERR(iomem)
;
spin_lock_init(&stm32_dmamux->lock);