Manufacturers do not always populate serial number in their devices, so
let's fall back to device ID when forming the battery device name. As a
result, batteries in devices without serial number will be named like
this:
hid-0018:2D1F:510E.0001-battery
(as opposed to hid--battery for the first one, and failing to create
batteries for the subsequent ones).
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
---
drivers/hid/hid-input.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 2158ec766dd5..27d8442b017d 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -456,7 +456,9 @@ static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
if (!psy_desc)
return -ENOMEM;
- psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
+ psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery",
+ strlen(dev->uniq) ?
+ dev->uniq : dev_name(&dev->dev));
if (!psy_desc->name) {
error = -ENOMEM;
goto err_free_mem;
--
2.14.0.rc1.383.gd1ce394fe2-goog
--
To unsubscribe from this list: send the line "unsubscribe linux-input" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
