6.12-stable review patch. If anyone has any objections, please let me know.
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From: Aditya Garg gargaditya08@live.com
commit c061046fe9ce3ff31fb9a807144a2630ad349c17 upstream.
Currently, the battery timer is set up for all devices using hid-apple, irrespective of whether they actually have a battery or not.
APPLE_RDESC_BATTERY is a quirk that indicates the device has a battery and needs the battery timer. This patch checks for this quirk before setting up the timer, ensuring that only devices with a battery will have the timer set up.
Fixes: 6e143293e17a ("HID: apple: Report Magic Keyboard battery over USB") Cc: stable@vger.kernel.org Signed-off-by: Aditya Garg gargaditya08@live.com Signed-off-by: Jiri Kosina jkosina@suse.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/hid/hid-apple.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)
--- a/drivers/hid/hid-apple.c +++ b/drivers/hid/hid-apple.c @@ -934,10 +934,12 @@ static int apple_probe(struct hid_device return ret; }
- timer_setup(&asc->battery_timer, apple_battery_timer_tick, 0); - mod_timer(&asc->battery_timer, - jiffies + msecs_to_jiffies(APPLE_BATTERY_TIMEOUT_MS)); - apple_fetch_battery(hdev); + if (quirks & APPLE_RDESC_BATTERY) { + timer_setup(&asc->battery_timer, apple_battery_timer_tick, 0); + mod_timer(&asc->battery_timer, + jiffies + msecs_to_jiffies(APPLE_BATTERY_TIMEOUT_MS)); + apple_fetch_battery(hdev); + }
if (quirks & APPLE_BACKLIGHT_CTL) apple_backlight_init(hdev); @@ -951,7 +953,9 @@ static int apple_probe(struct hid_device return 0;
out_err: - del_timer_sync(&asc->battery_timer); + if (quirks & APPLE_RDESC_BATTERY) + del_timer_sync(&asc->battery_timer); + hid_hw_stop(hdev); return ret; } @@ -960,7 +964,8 @@ static void apple_remove(struct hid_devi { struct apple_sc *asc = hid_get_drvdata(hdev);
- del_timer_sync(&asc->battery_timer); + if (asc->quirks & APPLE_RDESC_BATTERY) + del_timer_sync(&asc->battery_timer);
hid_hw_stop(hdev); }