From: SF Markus Elfring <elfring@users.sourceforge.net>
To: dmaengine@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-soc@vger.kernel.org, Andy Gross <andy.gross@linaro.org>,
Dan Williams <dan.j.williams@intel.com>,
David Brown <david.brown@linaro.org>,
Sinan Kaya <okaya@codeaurora.org>,
Vinod Koul <vinod.koul@intel.com>
Cc: LKML <linux-kernel@vger.kernel.org>, kernel-janitors@vger.kernel.org
Subject: [PATCH] hidma_mgmt_sys: Use devm_kmalloc_array() in hidma_mgmt_init_sys()
Date: Mon, 17 Apr 2017 22:55:16 +0200 [thread overview]
Message-ID: <89811982-af2d-3ab3-0ab3-ddb6e4ca369f@users.sourceforge.net> (raw)
From: Markus Elfring <elfring@users.sourceforge.net>
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@users.sourceforge.net>
---
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
next reply other threads:[~2017-04-17 20:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-17 20:55 SF Markus Elfring [this message]
2017-04-17 22:23 ` [PATCH] hidma_mgmt_sys: Use devm_kmalloc_array() in hidma_mgmt_init_sys() Sinan Kaya
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