path: root/drivers/power
diff options
authorGuangqing Zhu <>2021-04-21 22:36:50 +0800
committerSebastian Reichel <>2021-04-21 23:06:14 +0200
commitd0a43c12ee9f57ddb284272187bd18726c2c2c98 (patch)
tree1d6c5f2f1f65264d8327d6099249491e21b4de3a /drivers/power
parent43d8766372f49a2f40339e4e95abaa63bcc10905 (diff)
power: supply: cpcap-battery: fix invalid usage of list cursor
Fix invalid usage of a list_for_each_entry in cpcap_battery_irq_thread(). Empty list or fully traversed list points to list head, which is not NULL (and before the first element containing real data). Signed-off-by: Guangqing Zhu <> Reviewed-by: Tony Lindgren <> Reviewed-by: Carl Philipp Klemm <> Tested-by: Carl Philipp Klemm <> Signed-off-by: Sebastian Reichel <>
Diffstat (limited to 'drivers/power')
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/power/supply/cpcap-battery.c b/drivers/power/supply/cpcap-battery.c
index 6d5bcdb9f45d..a3fc0084cda0 100644
--- a/drivers/power/supply/cpcap-battery.c
+++ b/drivers/power/supply/cpcap-battery.c
@@ -786,7 +786,7 @@ static irqreturn_t cpcap_battery_irq_thread(int irq, void *data)
- if (!d)
+ if (list_entry_is_head(d, &ddata->irq_list, node))
return IRQ_NONE;
latest = cpcap_battery_latest(ddata);