This is a note to let you know that I've just added the patch titled drm/bridge: it66121: Initialize {device,vendor}_ids to the 5.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-bridge-it66121-initialize-device-vendor-_ids.patch and it can be found in the queue-5.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 238c372336a823ce7c947574825e2a8e5f846647 Author: Paul Cercueil <paul@xxxxxxxxxxxxxxx> Date: Fri Aug 27 17:39:55 2021 +0100 drm/bridge: it66121: Initialize {device,vendor}_ids [ Upstream commit 3a5f3d61de657bc1c2b53b77d065c5526f982e10 ] These two arrays are populated with data read from the I2C device through regmap_read(), and the data is then compared with hardcoded vendor/product ID values of supported chips. However, the return value of regmap_read() was never checked. This is fine, as long as the two arrays are zero-initialized, so that we don't compare the vendor/product IDs against whatever garbage is left on the stack. Address this issue by zero-initializing these two arrays. Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx> Fixes: 988156dc2fc9 ("drm: bridge: add it66121 driver") Reviewed-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx> Signed-off-by: Robert Foss <robert.foss@xxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20210827163956.27517-1-paul@xxxxxxxxxxxxxxx Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c index 2f2a09adb4bc8..b130d01147c6c 100644 --- a/drivers/gpu/drm/bridge/ite-it66121.c +++ b/drivers/gpu/drm/bridge/ite-it66121.c @@ -889,7 +889,7 @@ unlock: static int it66121_probe(struct i2c_client *client, const struct i2c_device_id *id) { - u32 vendor_ids[2], device_ids[2], revision_id; + u32 revision_id, vendor_ids[2] = { 0 }, device_ids[2] = { 0 }; struct device_node *ep; int ret; struct it66121_ctx *ctx;