From 20c35ac473116101120b3e170f294bc5bc70bbc4 Mon Sep 17 00:00:00 2001 From: Bartosz Golaszewski Date: Mon, 27 Nov 2017 11:48:38 +0100 Subject: [PATCH] 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 --- drivers/gpio/gpio-mockup.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) 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",