[PATCH] drm/msm/dsi: dsi_phy_28nm_8960: fix uninitialized variable access

[PATCH] drm/msm/dsi: dsi_phy_28nm_8960: fix uninitialized variable access

[Dmitry Baryshkov]

The parent_name initialization was lost in refactoring, restore it now.

Fixes: 5d13459650b3 ("drm/msm/dsi: push provided clocks handling into a generic code")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
index 582b1428f971..86e40a0d41a3 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
@@ -405,6 +405,10 @@ static int pll_28nm_register(struct dsi_pll_28nm *pll_28nm, struct clk_hw **prov
 	if (!vco_name)
 		return -ENOMEM;
 
+	parent_name = devm_kzalloc(dev, 32, GFP_KERNEL);
+	if (!parent_name)
+		return -ENOMEM;
+
 	clk_name = devm_kzalloc(dev, 32, GFP_KERNEL);
 	if (!clk_name)
 		return -ENOMEM;
-- 
2.30.2

Re: [PATCH] drm/msm/dsi: dsi_phy_28nm_8960: fix uninitialized variable access

[abhinavk]

On 2021-04-09 18:19, Dmitry Baryshkov wrote:
> The parent_name initialization was lost in refactoring, restore it now.
> 
> Fixes: 5d13459650b3 ("drm/msm/dsi: push provided clocks handling into
> a generic code")
> Reported-by: kernel test robot <lkp@intel.com>
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org>
> ---
>  drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
> b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
> index 582b1428f971..86e40a0d41a3 100644
> --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
> +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c
> @@ -405,6 +405,10 @@ static int pll_28nm_register(struct dsi_pll_28nm
> *pll_28nm, struct clk_hw **prov
>  	if (!vco_name)
>  		return -ENOMEM;
> 
> +	parent_name = devm_kzalloc(dev, 32, GFP_KERNEL);
> +	if (!parent_name)
> +		return -ENOMEM;
> +
>  	clk_name = devm_kzalloc(dev, 32, GFP_KERNEL);
>  	if (!clk_name)
>  		return -ENOMEM;