On Wednesday, April 04, 2012 1:41 AM, Rafal Prylowski wrote:
> On 2012-04-03 19:41, H Hartley Sweeten wrote:
> [not related to my patch, but ep93xx keypad]:
> Isn't ep93xx_keypad_acquire_gpio be more correct if we apply the following patch:
>
> Index: linux-2.6/arch/arm/mach-ep93xx/core.c
> ===================================================================
> --- linux-2.6.orig/arch/arm/mach-ep93xx/core.c
> +++ linux-2.6/arch/arm/mach-ep93xx/core.c
> @@ -734,7 +734,7 @@ int ep93xx_keypad_acquire_gpio(struct pl
> fail_gpio_d:
> gpio_free(EP93XX_GPIO_LINE_C(i));
> fail_gpio_c:
> - for ( ; i >= 0; --i) {
> + for (--i; i >= 0; --i) {
> gpio_free(EP93XX_GPIO_LINE_C(i));
> gpio_free(EP93XX_GPIO_LINE_D(i));
> }
>
> This way we don't double free EP93XX_GPIO_LINE_C(i), and don't free lines which were not
> successfully acquired (I noticed this when writing my patch, which is based on
> ep93xx_keypad_acquire/release_gpio).
You are correct... ;-)
Care to submit an actual patch?
Regards,
Hartley
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