From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 17 Apr 2017 22:42:40 +0200
* A multiplication for the size determination of a memory allocation
indicated that an array data structure should be processed.
Thus use the corresponding function "devm_kmalloc_array".
This issue was detected by using the Coccinelle software.
* Delete the local variable "required" which became unnecessary
with this refactoring.
Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/dma/qcom/hidma_mgmt_sys.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/dma/qcom/hidma_mgmt_sys.c b/drivers/dma/qcom/hidma_mgmt_sys.c
index d61f1068a34b..e7222a0e9ba4 100644
--- a/drivers/dma/qcom/hidma_mgmt_sys.c
+++ b/drivers/dma/qcom/hidma_mgmt_sys.c
@@ -245,11 +245,12 @@ int hidma_mgmt_init_sys(struct hidma_mgmt_dev *mdev)
{
unsigned int i;
int rc;
- int required;
struct kobject *chanops;
- required = sizeof(*mdev->chroots) * mdev->dma_channels;
- mdev->chroots = devm_kmalloc(&mdev->pdev->dev, required, GFP_KERNEL);
+ mdev->chroots = devm_kmalloc_array(&mdev->pdev->dev,
+ mdev->dma_channels,
+ sizeof(*mdev->chroots),
+ GFP_KERNEL);
if (!mdev->chroots)
return -ENOMEM;
--
2.12.2
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