The interface file is not writable, thus set permissions to S_IRUGO. Signed-off-by: Axel Lin <axel.lin@xxxxxxxxx> --- drivers/platform/x86/acer-wmi.c | 3 +-- 1 files changed, 1 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index 1415d97..fe7c9e4 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -1084,8 +1084,7 @@ static ssize_t show_interface(struct device *dev, struct device_attribute *attr, } } -static DEVICE_ATTR(interface, S_IWUGO | S_IRUGO | S_IWUSR, - show_interface, NULL); +static DEVICE_ATTR(interface, S_IRUGO, show_interface, NULL); /* * debugfs functions -- 1.5.4.3 -- To unsubscribe from this list: send the line "unsubscribe platform-driver-x86" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html