diff options
| author | Srinivas Neeli <srinivas.neeli@xilinx.com> | 2021-04-09 19:38:06 +0530 |
|---|---|---|
| committer | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2021-06-14 20:21:21 +0200 |
| commit | 35d7b72a632bc7afb15356f44005554af8697904 (patch) | |
| tree | 161a08647a20a8b546b2d1985705c434a4bb6e57 /drivers/gpio/gpio-zynq.c | |
| parent | a51b2fb94b04ab71e53a71b9fad03fa826941254 (diff) | |
| download | linux-35d7b72a632bc7afb15356f44005554af8697904.tar.bz2 | |
gpio: zynq: Check return value of irq_get_irq_data
In two different instances the return value of "irq_get_irq_data"
API was neither captured nor checked.
Fixed it by capturing the return value and then checking for any error.
Addresses-Coverity: "returned_null"
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpio/gpio-zynq.c')
| -rw-r--r-- | drivers/gpio/gpio-zynq.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpio/gpio-zynq.c b/drivers/gpio/gpio-zynq.c index c91302a16c77..f0cb8ccd03ed 100644 --- a/drivers/gpio/gpio-zynq.c +++ b/drivers/gpio/gpio-zynq.c @@ -736,6 +736,11 @@ static int __maybe_unused zynq_gpio_suspend(struct device *dev) struct zynq_gpio *gpio = dev_get_drvdata(dev); struct irq_data *data = irq_get_irq_data(gpio->irq); + if (!data) { + dev_err(dev, "irq_get_irq_data() failed\n"); + return -EINVAL; + } + if (!device_may_wakeup(dev)) disable_irq(gpio->irq); @@ -753,6 +758,11 @@ static int __maybe_unused zynq_gpio_resume(struct device *dev) struct irq_data *data = irq_get_irq_data(gpio->irq); int ret; + if (!data) { + dev_err(dev, "irq_get_irq_data() failed\n"); + return -EINVAL; + } + if (!device_may_wakeup(dev)) enable_irq(gpio->irq); |