[PATCH] iommu/arm-smmu: remove redundant assignment to variable res

[Colin Ian King]

The variable res is being assigned a value that isn't being read
later. The assignment is redundant and can be removed.

Cleans up clang scan warning:
drivers/iommu/arm/arm-smmu/arm-smmu.c:2109:10: warning: Although the
value stored to 'res' is used in the enclosing expression, the value
is never actually read from 'res' [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king at gmail.com>
---
 drivers/iommu/arm/arm-smmu/arm-smmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c
index 4bc75c4ce402..f83d2c32b5a9 100644
--- a/drivers/iommu/arm/arm-smmu/arm-smmu.c
+++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c
@@ -2106,7 +2106,7 @@ static int arm_smmu_device_probe(struct platform_device *pdev)
 		return PTR_ERR(smmu);
 
 	num_irqs = 0;
-	while ((res = platform_get_resource(pdev, IORESOURCE_IRQ, num_irqs))) {
+	while (platform_get_resource(pdev, IORESOURCE_IRQ, num_irqs)) {
 		num_irqs++;
 		if (num_irqs > smmu->num_global_irqs)
 			smmu->num_context_irqs++;
-- 
2.34.1