Messages in this thread | | | Date | Wed, 23 Feb 2022 20:19:05 +0100 | Subject | Re: [PATCH v2 09/11] clk: imx: scu: fix kfree() of static memory on setting driver_override | From | Krzysztof Kozlowski <> |
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On 23/02/2022 20:14, Krzysztof Kozlowski wrote: > The driver_override field from platform driver should not be initialized > from static memory (string literal) because the core later kfree() it, > for example when driver_override is set via sysfs. > > Use dedicated helper to set driver_override properly. > > Fixes: 77d8f3068c63 ("clk: imx: scu: add two cells binding support") > Cc: <stable@vger.kernel.org> > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> > --- > drivers/clk/imx/clk-scu.c | 7 ++++++- > 1 file changed, 6 insertions(+), 1 deletion(-) > > diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c > index 083da31dc3ea..15e1d670e51f 100644 > --- a/drivers/clk/imx/clk-scu.c > +++ b/drivers/clk/imx/clk-scu.c > @@ -683,7 +683,12 @@ struct clk_hw *imx_clk_scu_alloc_dev(const char *name, > return ERR_PTR(ret); > } > > - pdev->driver_override = "imx-scu-clk"; > + ret = driver_set_override(&pdev->dev, &pdev->driver_override, > + "imx-scu-clk"); > + if (ret) { > + platform_device_put(pdev); > + return ret;
This is wrong - should be ERR_PTR.
Best regards, Krzysztof
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