Messages in this thread | | | From | Jernej Škrabec <> | Subject | Re: [PATCH] drm/sun4i: Fix crash during suspend after component bind failure | Date | Wed, 15 Jun 2022 17:53:28 +0200 |
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Dne sreda, 15. junij 2022 ob 07:42:53 CEST je Samuel Holland napisal(a): > If the component driver fails to bind, or is unbound, the driver data > for the top-level platform device points to a freed drm_device. If the > system is then suspended, the driver passes this dangling pointer to > drm_mode_config_helper_suspend(), which crashes. > > Fix this by only setting the driver data while the platform driver holds > a reference to the drm_device. > > Fixes: 624b4b48d9d8 ("drm: sun4i: Add support for suspending the display driver") > Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Best regards, Jernej
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