kbd_led_level_set uses dell_smbios call which block, so the kbd_led
classdev should use the brightness_set_blocking callback.
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
---
drivers/platform/x86/dell-laptop.c | 26 ++++++++++++++------------
1 file changed, 14 insertions(+), 12 deletions(-)
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 3803da1..d43d2d7 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -1869,38 +1869,40 @@ static enum led_brightness kbd_led_level_get(struct led_classdev *led_cdev)
return 0;
}
-static void kbd_led_level_set(struct led_classdev *led_cdev,
- enum led_brightness value)
+static int kbd_led_level_set(struct led_classdev *led_cdev,
+ enum led_brightness value)
{
struct kbd_state state;
struct kbd_state new_state;
u16 num;
+ int ret;
if (kbd_get_max_level()) {
- if (kbd_get_state(&state))
- return;
+ ret = kbd_get_state(&state);
+ if (ret)
+ return ret;
new_state = state;
- if (kbd_set_level(&new_state, value))
- return;
- kbd_set_state_safe(&new_state, &state);
- return;
+ ret = kbd_set_level(&new_state, value);
+ if (ret)
+ return ret;
+ return kbd_set_state_safe(&new_state, &state);
}
if (kbd_get_valid_token_counts()) {
for (num = kbd_token_bits; num != 0 && value > 0; --value)
num &= num - 1; /* clear the first bit set */
if (num == 0)
- return;
- kbd_set_token_bit(ffs(num) - 1);
- return;
+ return 0;
+ return kbd_set_token_bit(ffs(num) - 1);
}
pr_warn("Keyboard brightness level control not supported\n");
+ return -ENXIO;
}
static struct led_classdev kbd_led = {
.name = "dell::kbd_backlight",
- .brightness_set = kbd_led_level_set,
+ .brightness_set_blocking = kbd_led_level_set,
.brightness_get = kbd_led_level_get,
.groups = kbd_led_groups,
};
--
2.9.3
--
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