Messages in this thread | | | From | Geert Uytterhoeven <> | Date | Thu, 11 Jul 2019 10:46:54 +0200 | Subject | Re: [PATCH v2 1/2] gpio: em: remove the gpiochip before removing the irq domain |
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CC Niklas, who has the hardware
On Thu, Jul 11, 2019 at 10:29 AM Bartosz Golaszewski <brgl@bgdev.pl> wrote: > From: Bartosz Golaszewski <bgolaszewski@baylibre.com> > > In commit 8764c4ca5049 ("gpio: em: use the managed version of > gpiochip_add_data()") we implicitly altered the ordering of resource > freeing: since gpiochip_remove() calls gpiochip_irqchip_remove() > internally, we now can potentially use the irq_domain after it was > destroyed in the remove() callback (as devm resources are freed after > remove() has returned). > > Use devm_add_action_or_reset() to keep the ordering right and entirely > kill the remove() callback in the driver. > > Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> > Fixes: 8764c4ca5049 ("gpio: em: use the managed version of gpiochip_add_data()") > Cc: stable@vger.kernel.org > Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
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