This is a note to let you know that I've just added the patch titled
power: supply: fix residue sysfs file in error handle route of __power_supply_register()
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
power-supply-fix-residue-sysfs-file-in-error-handle-.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit bd1ddd89ede7010056402887f6a8b8c79543db72
Author: Zeng Heng <zengheng4@xxxxxxxxxx>
Date: Thu Nov 17 16:32:19 2022 +0800
power: supply: fix residue sysfs file in error handle route of __power_supply_register()
[ Upstream commit 5b79480ce1978864ac3f06f2134dfa3b6691fe74 ]
If device_add() succeeds, we should call device_del() when want to
get rid of it, so move it into proper jump symbol.
Otherwise, when __power_supply_register() returns fail and goto
wakeup_init_failed to exit, there is still residue device file in sysfs.
When attempt to probe device again, sysfs would complain as below:
sysfs: cannot create duplicate filename '/devices/platform/i2c/i2c-0/0-001c/power_supply/adp5061'
Call Trace:
dump_stack_lvl+0x68/0x85
sysfs_warn_dup.cold+0x1c/0x29
sysfs_create_dir_ns+0x1b1/0x1d0
kobject_add_internal+0x143/0x390
kobject_add+0x108/0x170
Fixes: 80c6463e2fa3 ("power_supply: Fix Oops from NULL pointer dereference from wakeup_source_activate")
Signed-off-by: Zeng Heng <zengheng4@xxxxxxxxxx>
Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/power/supply/power_supply_core.c b/drivers/power/supply/power_supply_core.c
index a2f56a68c50d..3afc0b833eb8 100644
--- a/drivers/power/supply/power_supply_core.c
+++ b/drivers/power/supply/power_supply_core.c
@@ -1104,8 +1104,8 @@ __power_supply_register(struct device *parent,
register_cooler_failed:
psy_unregister_thermal(psy);
register_thermal_failed:
- device_del(dev);
wakeup_init_failed:
+ device_del(dev);
device_add_failed:
check_supplies_failed:
dev_set_name_failed:
