From: Bartosz Golaszewski Date: Mon, 27 Nov 2017 10:48:38 +0000 (+0100) Subject: gpio: mockup: parse the module params in init, not probe X-Git-Tag: v4.16-rc1~135^2~71 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=20c35ac473116101120b3e170f294bc5bc70bbc4;p=linux.git gpio: mockup: parse the module params in init, not probe If the module parameters are invalid, we should bail out from the init function instead of detecting it during the device probe. That way we don't even allow the user to load the module if we don't accept the arguments. Signed-off-by: Bartosz Golaszewski Signed-off-by: Linus Walleij --- diff --git a/drivers/gpio/gpio-mockup.c b/drivers/gpio/gpio-mockup.c index d21c6d651287..b70f3b0c30b1 100644 --- a/drivers/gpio/gpio-mockup.c +++ b/drivers/gpio/gpio-mockup.c @@ -275,9 +275,6 @@ static int gpio_mockup_probe(struct platform_device *pdev) struct gpio_mockup_chip *chips; char *chip_name; - if (gpio_mockup_params_nr < 2 || (gpio_mockup_params_nr % 2)) - return -EINVAL; - /* Each chip is described by two values. */ num_chips = gpio_mockup_params_nr / 2; @@ -333,6 +330,9 @@ static int __init gpio_mockup_init(void) { int err; + if (gpio_mockup_params_nr < 2 || (gpio_mockup_params_nr % 2)) + return -EINVAL; + gpio_mockup_dbg_dir = debugfs_create_dir("gpio-mockup-event", NULL); if (!gpio_mockup_dbg_dir) pr_err("%s: error creating debugfs directory\n",