Check if we were successful in setting the requested brightness and
report failure in that case.
Signed-off-by: Mattia Dongili <malattia@xxxxxxxx>
---
drivers/platform/x86/sony-laptop.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index c8d755a..2fe7ddd 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -961,9 +961,10 @@ static int sony_nc_update_status_ng(struct backlight_device *bd)
int *handle = (int *)bl_get_data(bd);
value = bd->props.brightness;
- sony_call_snc_handle(*handle, 0x0100 | (value << 16), &result);
+ if (sony_call_snc_handle(*handle, 0x0100 | (value << 16), &result))
+ return -EIO;
- return sony_nc_get_brightness_ng(bd);
+ return value;
}
static const struct backlight_ops sony_backlight_ops = {
--
1.7.4.1
--
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