Hi Markus, On 15/04/17 05:04, SF Markus Elfring wrote: > From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> > Date: Fri, 14 Apr 2017 18:48:15 +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. > > * Replace the specification of a data type by a pointer dereference > to make the corresponding size determination a bit safer according to > the Linux coding style convention. > > * Delete the local variable "nregs" which became unnecessary with > this refactoring. > > Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx> > --- > drivers/pinctrl/mvebu/pinctrl-armada-xp.c | 10 +++++----- > 1 file changed, 5 insertions(+), 5 deletions(-) > > diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-xp.c b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c > index b854f1ee5de5..457c54c8fed3 100644 > --- a/drivers/pinctrl/mvebu/pinctrl-armada-xp.c > +++ b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c > @@ -574,7 +574,6 @@ static int armada_xp_pinctrl_probe(struct platform_device *pdev) > struct mvebu_pinctrl_soc_info *soc = &armada_xp_pinctrl_info; > const struct of_device_id *match = > of_match_device(armada_xp_pinctrl_of_match, &pdev->dev); > - int nregs; > > if (!match) > return -ENODEV; > @@ -628,10 +627,11 @@ static int armada_xp_pinctrl_probe(struct platform_device *pdev) > break; > } > > - nregs = DIV_ROUND_UP(soc->nmodes, MVEBU_MPPS_PER_REG); > - > - mpp_saved_regs = devm_kmalloc(&pdev->dev, nregs * sizeof(u32), > - GFP_KERNEL); > + mpp_saved_regs = devm_kmalloc_array(&pdev->dev, > + DIV_ROUND_UP(soc->nmodes, > + MVEBU_MPPS_PER_REG), > + sizeof(*mpp_saved_regs), > + GFP_KERNEL); I personally think having nregs makes the code a bit more readable but that's just me. With or without a change Reviewed-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx> > if (!mpp_saved_regs) > return -ENOMEM; > > -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
