* [PATCH][V2] usb: ohci-da8xx: ensure error return on variable error is set
@ 2020-01-07 10:30 Colin King
2020-01-07 12:10 ` Dan Carpenter
0 siblings, 1 reply; 2+ messages in thread
From: Colin King @ 2020-01-07 10:30 UTC (permalink / raw)
To: Alan Stern, Greg Kroah-Hartman, Sekhar Nori, Bartosz Golaszewski,
linux-usb
Cc: kernel-janitors, linux-kernel
From: Colin Ian King <colin.king@canonical.com>
Currently when an error in da8xx_ohci->oc_gpio occurs it causes an
uninitialized error return in variable 'error' to be returned. Fix
this by ensuring the error variable is set to the error value in
da8xx_ohci->oc_gpio.
Addresses-Coverity: ("Uninitialized scalar variable")
Fixes: d193abf1c913 ("usb: ohci-da8xx: add vbus and overcurrent gpios")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
V2: fix typo and grammar in commit message
---
drivers/usb/host/ohci-da8xx.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 38183ac438c6..9cdf787055b7 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -415,8 +415,10 @@ static int ohci_da8xx_probe(struct platform_device *pdev)
}
da8xx_ohci->oc_gpio = devm_gpiod_get_optional(dev, "oc", GPIOD_IN);
- if (IS_ERR(da8xx_ohci->oc_gpio))
+ if (IS_ERR(da8xx_ohci->oc_gpio)) {
+ error = PTR_ERR(da8xx_ohci->oc_gpio);
goto err;
+ }
if (da8xx_ohci->oc_gpio) {
oc_irq = gpiod_to_irq(da8xx_ohci->oc_gpio);
--
2.24.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH][V2] usb: ohci-da8xx: ensure error return on variable error is set
2020-01-07 10:30 [PATCH][V2] usb: ohci-da8xx: ensure error return on variable error is set Colin King
@ 2020-01-07 12:10 ` Dan Carpenter
0 siblings, 0 replies; 2+ messages in thread
From: Dan Carpenter @ 2020-01-07 12:10 UTC (permalink / raw)
To: Colin King
Cc: Alan Stern, Greg Kroah-Hartman, Sekhar Nori, Bartosz Golaszewski,
linux-usb, kernel-janitors, linux-kernel
On Tue, Jan 07, 2020 at 10:30:35AM +0000, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
>
> Currently when an error in da8xx_ohci->oc_gpio occurs it causes an
> uninitialized error return in variable 'error' to be returned. Fix
> this by ensuring the error variable is set to the error value in
> da8xx_ohci->oc_gpio.
>
> Addresses-Coverity: ("Uninitialized scalar variable")
> Fixes: d193abf1c913 ("usb: ohci-da8xx: add vbus and overcurrent gpios")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
>
> V2: fix typo and grammar in commit message
>
> ---
> drivers/usb/host/ohci-da8xx.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
> index 38183ac438c6..9cdf787055b7 100644
> --- a/drivers/usb/host/ohci-da8xx.c
> +++ b/drivers/usb/host/ohci-da8xx.c
> @@ -415,8 +415,10 @@ static int ohci_da8xx_probe(struct platform_device *pdev)
> }
>
> da8xx_ohci->oc_gpio = devm_gpiod_get_optional(dev, "oc", GPIOD_IN);
> - if (IS_ERR(da8xx_ohci->oc_gpio))
> + if (IS_ERR(da8xx_ohci->oc_gpio)) {
> + error = PTR_ERR(da8xx_ohci->oc_gpio);
> goto err;
> + }
>
> if (da8xx_ohci->oc_gpio) {
> oc_irq = gpiod_to_irq(da8xx_ohci->oc_gpio);
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Also uninitialized here.
regards,
dan carpenter
^ permalink raw reply [flat|nested] 2+ messages in thread
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