diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c index 7e51840cd262..2bac28ec7f85 100644 --- a/drivers/staging/greybus/gpio.c +++ b/drivers/staging/greybus/gpio.c @@ -184,8 +184,13 @@ static void gb_gpio_deactivate_operation(struct gb_gpio_controller *ggc, request.which = which; ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_DEACTIVATE, &request, sizeof(request), NULL, 0); - if (!ret) - ggc->lines[which].active = false; + if (ret) { + dev_err(ggc->chip.dev, "failed to deactivate gpio %u\n", + which); + return; + } + + ggc->lines[which].active = false; } static int gb_gpio_get_direction_operation(struct gb_gpio_controller *ggc, @@ -254,8 +259,11 @@ static int gb_gpio_get_value_operation(struct gb_gpio_controller *ggc, ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_GET_VALUE, &request, sizeof(request), &response, sizeof(response)); - if (ret) + if (ret) { + dev_err(ggc->chip.dev, "failed to get value of gpio %u\n", + which); return ret; + } value = response.value; if (value && value != 1) { @@ -283,8 +291,13 @@ static void gb_gpio_set_value_operation(struct gb_gpio_controller *ggc, request.value = value_high ? 1 : 0; ret = gb_operation_sync(ggc->connection, GB_GPIO_TYPE_SET_VALUE, &request, sizeof(request), NULL, 0); - if (!ret) - ggc->lines[which].value = request.value; + if (ret) { + dev_err(ggc->chip.dev, "failed to set value of gpio %u\n", + which); + return; + } + + ggc->lines[which].value = request.value; } static int gb_gpio_set_debounce_operation(struct gb_gpio_controller *ggc,