When CONFIG_REGULATOR is not set, sunxi_pmx_request() always return
success. Even a group of pins call sunxi_pmx_request(), the refcount
is only 1. This can cause a use-after-free warning in sunxi_pmx_free().
To solve this problem, go to err path if regulator_get() return NULL
or error.
Signed-off
Hi,
On Tue, Jan 19, 2021 at 02:29:08PM +0800, Liu Xiang wrote:
> When CONFIG_REGULATOR is not set, sunxi_pmx_request() always return
> success. Even a group of pins call sunxi_pmx_request(), the refcount
> is only 1. This can cause a use-after-free warning in sunxi_pmx_free().
> To solve this prob
> Hi,
> On Tue, Jan 19, 2021 at 02:29:08PM +0800, Liu Xiang wrote:
> When CONFIG_REGULATOR is not set, sunxi_pmx_request() always return
> success. Even a group of pins call sunxi_pmx_request(), the refcount
> is only 1. This can cause a use-after-free warning in sunxi_pmx_free().
> To solve this
On Thu, Jan 21, 2021 at 5:40 PM Maxime Ripard wrote:
> On Tue, Jan 19, 2021 at 02:29:08PM +0800, Liu Xiang wrote:
> > When CONFIG_REGULATOR is not set, sunxi_pmx_request() always return
> > success. Even a group of pins call sunxi_pmx_request(), the refcount
> > is only 1. This can cause a use-aft
--
> On Thu, Jan 21, 2021 at 5:40 PM Maxime Ripard wrote:
> On Tue, Jan 19, 2021 at 02:29:08PM +0800, Liu Xiang wrote:
> > When CONFIG_REGULATOR is not set, sunxi_pmx_request() always return
> > success. Even a group of pins call sun
On Tue, Jan 26, 2021 at 7:31 AM liu xiang wrote:
> > Liu can you make a patch to Kconfig to just select REGULATOR?
> > Possibly even the specific regulator driver this SoC is using
> > if it is very specific for this purpose.
>
> I found that the regulator driver is related to the specific board,
On Tue, Jan 26, 2021 at 04:03:29PM +0100, Linus Walleij wrote:
> On Tue, Jan 26, 2021 at 7:31 AM liu xiang wrote:
>
> > > Liu can you make a patch to Kconfig to just select REGULATOR?
> > > Possibly even the specific regulator driver this SoC is using
> > > if it is very specific for this purpose
> On Thu, Jan 21, 2021 at 5:40 PM Maxime Ripard wrote:
> On Tue, Jan 19, 2021 at 02:29:08PM +0800, Liu Xiang wrote:
> > When CONFIG_REGULATOR is not set, sunxi_pmx_request() always return
> > success. Even a group of pins call sunxi_pmx_request(), the refcount
> > is only 1. This can cause a use-a
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