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dmaengine: hidma: Constify returned by device_get_match_data() value

PATCH New Andy Shevchenko 1 participant 1 message Jan 31, 2018

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PATCH 3/4 dmaengine: hidma: Constify returned by device_get_match_data() value

The value under the hood is constant in any case.
It makes sense to show this explicitly.

Fixes 95fbfb7aa28d ("dmaengine: qcom_hidma: Add support for the new revision")
Cc Sinan Kaya <[email protected]>
Cc Sakari Ailus <[email protected]>
Cc Vinod Koul <[email protected]>
---
 drivers/dma/qcom/hidma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
drivers/dma/qcom/hidma.c +2 -2
index 963cc5228d05..24e163cefb7c 100644
@@ -743,9 +743,9 @@ static int hidma_request_msi(struct hidma_dev *dmadev,
 
 static bool hidma_test_capability(struct device *dev, enum hidma_cap test_cap)
 {
-	enum hidma_cap cap;
+	const enum hidma_cap cap;
 
-	cap = (enum hidma_cap) device_get_match_data(dev);
+	cap = (const enum hidma_cap) device_get_match_data(dev);
 	return cap ? ((cap & test_cap) > 0) : 0;
 }