| Message ID | 7049b151670d3cb3ca190185bb484a79b2d5d845.1607765148.git.syednwaris@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | Modify bitmap_set_value() to suppress compiler warning | expand |
diff --git a/drivers/gpio/gpio-xilinx.c b/drivers/gpio/gpio-xilinx.c index 05dae086c4d0..a2e92a1cf50b 100644 --- a/drivers/gpio/gpio-xilinx.c +++ b/drivers/gpio/gpio-xilinx.c @@ -340,6 +340,12 @@ static int xgpio_probe(struct platform_device *pdev) chip->gc.base = -1; chip->gc.ngpio = chip->gpio_width[0] + chip->gpio_width[1]; + + if (chip->gc.ngpio > 64) { + dev_err(&pdev->dev, "invalid configuration: number of GPIO is greater than 64"); + return -EINVAL; + } + chip->gc.parent = &pdev->dev; chip->gc.direction_input = xgpio_dir_in; chip->gc.direction_output = xgpio_dir_out;
Add extra check to see if sum of widths does not exceed 64. If it exceeds then return -EINVAL alongwith appropriate error message. Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Syed Nayyar Waris <syednwaris@gmail.com> --- drivers/gpio/gpio-xilinx.c | 6 ++++++ 1 file changed, 6 insertions(+)