mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 19:29:37 +00:00
drivers:video:fbdev atmel_lcdfb.c power GPIO registration bug
A list that was intended for storing power control GPIOs was never initialized correctly or filled. Without these lines of added code the kernel hangs when trying to access an uninitialized list when a power control GPIO is registered with the device tree. Signed-off-by: Michael Welling <mwelling@ieee.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
parent
a497c3ba1d
commit
4bc8cad5e1
1 changed files with 2 additions and 0 deletions
|
@ -1057,6 +1057,7 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
|
|||
goto put_display_node;
|
||||
}
|
||||
|
||||
INIT_LIST_HEAD(&pdata->pwr_gpios);
|
||||
ret = -ENOMEM;
|
||||
for (i = 0; i < of_gpio_named_count(display_np, "atmel,power-control-gpio"); i++) {
|
||||
gpio = of_get_named_gpio_flags(display_np, "atmel,power-control-gpio",
|
||||
|
@ -1082,6 +1083,7 @@ static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
|
|||
dev_err(dev, "set direction output gpio %d failed\n", gpio);
|
||||
goto put_display_node;
|
||||
}
|
||||
list_add(&og->list, &pdata->pwr_gpios);
|
||||
}
|
||||
|
||||
if (is_gpio_power)
|
||||
|
|
Loading…
Reference in a new issue