drm/bridge: it6505: Initialize AUX channel in it6505_i2c_probe

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[ Upstream commit e577d4b130 ]

During device boot, the HPD interrupt could be triggered before the DRM
subsystem registers it6505 as a DRM bridge. In such cases, the driver
tries to access AUX channel and causes NULL pointer dereference.
Initializing the AUX channel earlier to prevent such error.

Fixes: b5c84a9edc ("drm/bridge: add it6505 driver")
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20221013110411.1674359-2-treapking@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Pin-yen Lin 2022-10-13 19:04:08 +08:00 • committed by Greg Kroah-Hartman

parent 782175a601

commit 172d4d6407

1 changed files with 5 additions and 3 deletions

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drivers/gpu/drm/bridge/ite-it6505.c

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