[PATCH v2] USB: host: ehci-mxc: Add error handling in ehci_mxc_drv_probe()

[PATCH v2] USB: host: ehci-mxc: Add error handling in ehci_mxc_drv_probe()

[Tang Bin]

The function ehci_mxc_drv_probe() does not perform sufficient error
checking after executing platform_get_irq(), thus fix it.

Fixes: 7e8d5cd93fa ("USB: Add EHCI support for MX27 and MX31 based boards")
Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
---
Changes from v1
 - fix the subject.
---
 drivers/usb/host/ehci-mxc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index c9f91e6c7..7f65c8604 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -50,6 +50,8 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
 
 	hcd = usb_create_hcd(&ehci_mxc_hc_driver, dev, dev_name(dev));
 	if (!hcd)
-- 
2.20.1.windows.1

Re: [PATCH v2] USB: host: ehci-mxc: Add error handling in ehci_mxc_drv_probe()

[Peter Chen]

On 20-05-13 21:26:47, Tang Bin wrote:
> The function ehci_mxc_drv_probe() does not perform sufficient error
> checking after executing platform_get_irq(), thus fix it.
> 
> Fixes: 7e8d5cd93fa ("USB: Add EHCI support for MX27 and MX31 based boards")
> Signed-off-by: Zhang Shengju <zhangshengju@cmss.chinamobile.com>
> Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
> ---
> Changes from v1
>  - fix the subject.
> ---
>  drivers/usb/host/ehci-mxc.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
> index c9f91e6c7..7f65c8604 100644
> --- a/drivers/usb/host/ehci-mxc.c
> +++ b/drivers/usb/host/ehci-mxc.c
> @@ -50,6 +50,8 @@ static int ehci_mxc_drv_probe(struct platform_device *pdev)
>  	}
>  
>  	irq = platform_get_irq(pdev, 0);
> +	if (irq < 0)
> +		return irq;
>  
>  	hcd = usb_create_hcd(&ehci_mxc_hc_driver, dev, dev_name(dev));
>  	if (!hcd)
> -- 

Reviewed-by: Peter Chen <peter.chen@nxp.com>

-- 

Thanks,
Peter Chen