Re: [PATCH] regulator: pfuze100-regulator: Variable "val" in pfuze100_regulator_probe() could be uninitialized
From: Yizhuo Zhai
Date: Tue Sep 03 2019 - 12:20:49 EST
Thanks Mark, I will send a new patch and check the return value instead.
On Tue, Sep 3, 2019 at 4:26 AM Mark Brown <broonie@xxxxxxxxxx> wrote:
> On Mon, Sep 02, 2019 at 03:10:47PM -0700, Yizhuo wrote:
> > In function pfuze100_regulator_probe(), variable "val" could be
> > initialized if regmap_read() fails. However, "val" is used to
> > decide the control flow later in the if statement, which is
> > potentially unsafe.
> > struct regulator_desc *desc;
> > - int val;
> > + int val = 0;
> This just unconditionally assings a value to this variable which will
> stop any warnings but there's no analysis explaining why this is a good
> fix - are we actually forgetting to check something we should be
> checking, are we sure that this is the correct value to use?
Computer Science, Graduate Student
University of California, Riverside