| Message ID | 89811982-af2d-3ab3-0ab3-ddb6e4ca369f@users.sourceforge.net (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
On 4/17/2017 4:55 PM, SF Markus Elfring wrote: > 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; > > Reviewed-by: Sinan Kaya <okaya@codeauora.org>
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;