diff options
| author | Paul Cercueil <paul@crapouillou.net> | 2021-08-27 17:39:55 +0100 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2021-08-31 16:12:51 +0200 |
| commit | 3a5f3d61de657bc1c2b53b77d065c5526f982e10 (patch) | |
| tree | 809bac1123948e696f27c3feb1a5beae4553238d /drivers/gpu/drm/bridge | |
| parent | c9d7b2827dd221f8f90033b69b97373d647d8e9b (diff) | |
drm/bridge: it66121: Initialize {device,vendor}_ids
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@crapouillou.net>
Fixes: 988156dc2fc9 ("drm: bridge: add it66121 driver")
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210827163956.27517-1-paul@crapouillou.net
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/ite-it66121.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c index 2f2a09adb4bc..b130d01147c6 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; |