drm/msm: fix NULL-deref on irq uninstall
commit cd459c00 upstream. In case of early initialisation errors and on platforms that do not use the DPU controller, the deinitilisation code can be called with the kms pointer set to NULL. Fixes: f026e431 ("drm/msm: Convert to Linux IRQ interfaces") Cc: stable@vger.kernel.org # 5.14 Cc: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Patchwork: https://patchwork.freedesktop.org/patch/525104/ Link: https://lore.kernel.org/r/20230306100722.28485-5-johan+linaro@kernel.org Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
8f0e1ad5
Please register or sign in to comment