From: Guangqing Zhu zhuguangqing83@gmail.com
[ Upstream commit d0a43c12ee9f57ddb284272187bd18726c2c2c98 ]
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 zhuguangqing83@gmail.com Reviewed-by: Tony Lindgren tony@atomide.com Reviewed-by: Carl Philipp Klemm philipp@uvos.xyz Tested-by: Carl Philipp Klemm philipp@uvos.xyz Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/power/supply/cpcap-battery.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
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) break; }
- if (!d) + if (list_entry_is_head(d, &ddata->irq_list, node)) return IRQ_NONE;
latest = cpcap_battery_latest(ddata);