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| author | Haoyu Li <lihaoyu499@gmail.com> | 2024-12-03 22:14:51 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-29 14:07:06 +0100 |
| commit | 2ae71c3770c39293b3d0ef540860026d9f5f0ee0 (patch) | |
| tree | 3f16632b04eb0796b0aa11a9cb687ae542dbb6a5 /drivers | |
| parent | bfd17b6138df0122a95989457d8e18ce0b86165e (diff) | |
| download | linux-2ae71c3770c39293b3d0ef540860026d9f5f0ee0.tar.gz linux-2ae71c3770c39293b3d0ef540860026d9f5f0ee0.tar.bz2 linux-2ae71c3770c39293b3d0ef540860026d9f5f0ee0.zip | |
gpio: ljca: Initialize num before accessing item in ljca_gpio_config
commit 3396995f9fb6bcbe0004a68118a22f98bab6e2b9 upstream.
With the new __counted_by annocation in ljca_gpio_packet, the "num"
struct member must be set before accessing the "item" array. Failing to
do so will trigger a runtime warning when enabling CONFIG_UBSAN_BOUNDS
and CONFIG_FORTIFY_SOURCE.
Fixes: 1034cc423f1b ("gpio: update Intel LJCA USB GPIO driver")
Cc: stable@vger.kernel.org
Signed-off-by: Haoyu Li <lihaoyu499@gmail.com>
Link: https://lore.kernel.org/stable/20241203141451.342316-1-lihaoyu499%40gmail.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpio/gpio-ljca.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-ljca.c b/drivers/gpio/gpio-ljca.c index ddd73b8b790e..c3a595c6f6c7 100644 --- a/drivers/gpio/gpio-ljca.c +++ b/drivers/gpio/gpio-ljca.c @@ -82,9 +82,9 @@ static int ljca_gpio_config(struct ljca_gpio_dev *ljca_gpio, u8 gpio_id, int ret; mutex_lock(&ljca_gpio->trans_lock); + packet->num = 1; packet->item[0].index = gpio_id; packet->item[0].value = config | ljca_gpio->connect_mode[gpio_id]; - packet->num = 1; ret = ljca_transfer(ljca_gpio->ljca, LJCA_GPIO_CONFIG, (u8 *)packet, struct_size(packet, item, packet->num), NULL, 0); |