Messages in this thread | | | From | Vivek Gautam <> | Date | Fri, 20 Jan 2017 01:39:32 +0530 | Subject | Re: [PATCH 1/4] phy: qcom-ufs: Don't kfree devres resource |
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On Thu, Jan 19, 2017 at 4:17 PM, Bjorn Andersson <bjorn.andersson@linaro.org> wrote: > Upon failing to acquire regulator supplies the qcom-ufs driver calls > kfree() on the devm allocated memory used to store the name of the > regulator, leading to devres corruption. > > Rather than switching to using the appropriate free function the patch > acknowledge the fact that "name" is always a constant string and we > don't actually need to create a local copy of it, but rather just > reference the constant string. > > Cc: Subhash Jadavani <subhashj@codeaurora.org> > Cc: Vivek Gautam <vivek.gautam@codeaurora.org> > Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> > ---
This patch fixes: add78fc05702 phy: qcom-ufs: Use devm sibling of kstrdup for regulator names
Regards Vivek
> drivers/phy/phy-qcom-ufs.c | 9 +-------- > 1 file changed, 1 insertion(+), 8 deletions(-) > > diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c > index c69568b8543d..4d7f3c018223 100644 > --- a/drivers/phy/phy-qcom-ufs.c > +++ b/drivers/phy/phy-qcom-ufs.c > @@ -217,12 +217,7 @@ static int __ufs_qcom_phy_init_vreg(struct device *dev, > > char prop_name[MAX_PROP_NAME]; > > - vreg->name = devm_kstrdup(dev, name, GFP_KERNEL); > - if (!vreg->name) { > - err = -ENOMEM; > - goto out; > - } > - > + vreg->name = name; > vreg->reg = devm_regulator_get(dev, name); > if (IS_ERR(vreg->reg)) { > err = PTR_ERR(vreg->reg); > @@ -265,8 +260,6 @@ static int __ufs_qcom_phy_init_vreg(struct device *dev, > } > > out: > - if (err) > - kfree(vreg->name); > return err; > } > > -- > 2.11.0 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html
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