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PCI: uniphier: Fix some error handling in uniphier_pcie_ep_probe()

Message ID 20200603175207.GB18931@mwanda (mailing list archive)
State Accepted, archived
Headers show
Series PCI: uniphier: Fix some error handling in uniphier_pcie_ep_probe() | expand

Commit Message

Dan Carpenter June 3, 2020, 5:52 p.m. UTC
This code is checking the wrong variable.  It should be checking
"clk_gio" instead of "clk".  The "priv->clk" pointer is NULL at this
point so the condition is false.

Fixes: 006564dee8253 ("PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/pci/controller/dwc/pcie-uniphier-ep.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Kunihiko Hayashi June 4, 2020, 12:39 a.m. UTC | #1
Hi Dan,

On 2020/06/04 2:52, Dan Carpenter wrote:
> This code is checking the wrong variable.  It should be checking
> "clk_gio" instead of "clk".  The "priv->clk" pointer is NULL at this
> point so the condition is false.
> 
> Fixes: 006564dee8253 ("PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
>   drivers/pci/controller/dwc/pcie-uniphier-ep.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/pci/controller/dwc/pcie-uniphier-ep.c b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
> index 0f36aa33d2e50..1483559600610 100644
> --- a/drivers/pci/controller/dwc/pcie-uniphier-ep.c
> +++ b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
> @@ -324,8 +324,8 @@ static int uniphier_pcie_ep_probe(struct platform_device *pdev)
>   		return PTR_ERR(priv->base);
>   
>   	priv->clk_gio = devm_clk_get(dev, "gio");
> -	if (IS_ERR(priv->clk))
> -		return PTR_ERR(priv->clk);
> +	if (IS_ERR(priv->clk_gio))
> +		return PTR_ERR(priv->clk_gio);
>   
>   	priv->rst_gio = devm_reset_control_get_shared(dev, "gio");
>   	if (IS_ERR(priv->rst_gio))
> 

Thank you for pointing out.
Certainly this is a wrong check.

Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>

Thanks,

---
Best Regards
Kunihiko Hayashi
Lorenzo Pieralisi June 4, 2020, 9:07 a.m. UTC | #2
On Wed, Jun 03, 2020 at 08:52:07PM +0300, Dan Carpenter wrote:
> This code is checking the wrong variable.  It should be checking
> "clk_gio" instead of "clk".  The "priv->clk" pointer is NULL at this
> point so the condition is false.
> 
> Fixes: 006564dee8253 ("PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver")
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
>  drivers/pci/controller/dwc/pcie-uniphier-ep.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)

Squashed in the commit it is fixing, thanks !

Lorenzo

> diff --git a/drivers/pci/controller/dwc/pcie-uniphier-ep.c b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
> index 0f36aa33d2e50..1483559600610 100644
> --- a/drivers/pci/controller/dwc/pcie-uniphier-ep.c
> +++ b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
> @@ -324,8 +324,8 @@ static int uniphier_pcie_ep_probe(struct platform_device *pdev)
>  		return PTR_ERR(priv->base);
>  
>  	priv->clk_gio = devm_clk_get(dev, "gio");
> -	if (IS_ERR(priv->clk))
> -		return PTR_ERR(priv->clk);
> +	if (IS_ERR(priv->clk_gio))
> +		return PTR_ERR(priv->clk_gio);
>  
>  	priv->rst_gio = devm_reset_control_get_shared(dev, "gio");
>  	if (IS_ERR(priv->rst_gio))
> -- 
> 2.26.2
>
diff mbox series

Patch

diff --git a/drivers/pci/controller/dwc/pcie-uniphier-ep.c b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
index 0f36aa33d2e50..1483559600610 100644
--- a/drivers/pci/controller/dwc/pcie-uniphier-ep.c
+++ b/drivers/pci/controller/dwc/pcie-uniphier-ep.c
@@ -324,8 +324,8 @@  static int uniphier_pcie_ep_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->base);
 
 	priv->clk_gio = devm_clk_get(dev, "gio");
-	if (IS_ERR(priv->clk))
-		return PTR_ERR(priv->clk);
+	if (IS_ERR(priv->clk_gio))
+		return PTR_ERR(priv->clk_gio);
 
 	priv->rst_gio = devm_reset_control_get_shared(dev, "gio");
 	if (IS_ERR(priv->rst_gio))