Files
linux-stable-mirror/drivers/gpio
Wentao LiangandGreg Kroah-Hartman 1819802e29 gpio: stmpe: Check return value of stmpe_reg_read in stmpe_gpio_irq_sync_unlock
commit b9644fbfbc upstream.

The stmpe_reg_read function can fail, but its return value is not checked
in stmpe_gpio_irq_sync_unlock. This can lead to silent failures and
incorrect behavior if the hardware access fails.

This patch adds checks for the return value of stmpe_reg_read. If the
function fails, an error message is logged and the function returns
early to avoid further issues.

Fixes: b888fb6f2a ("gpio: stmpe: i2c transfer are forbiden in atomic context")
Cc: stable@vger.kernel.org # 4.16+
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Link: https://lore.kernel.org/r/20250212021849.275-1-vulab@iscas.ac.cn
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-02-21 13:50:05 +01:00
..
2024-10-17 15:22:02 +02:00
2023-08-03 10:23:49 +02:00