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| author | Guangqing Zhu <zhuguangqing83@gmail.com> | 2021-04-21 17:36:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-11 15:47:32 +0300 |
| commit | 443467bd6240806cca99a9c86038225b4967fa05 (patch) | |
| tree | 3e8536f207a8204a5e9e87de4c57aad92609e619 | |
| parent | a15f68a5d55c45e1b707c02c1808e512312011b3 (diff) | |
| download | linux-443467bd6240806cca99a9c86038225b4967fa05.tar.xz | |
power: supply: cpcap-battery: fix invalid usage of list cursor
[ 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>
| -rw-r--r-- | drivers/power/supply/cpcap-battery.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/power/supply/cpcap-battery.c b/drivers/power/supply/cpcap-battery.c index cebc5c8fda1b..793d4ca52f8a 100644 --- a/drivers/power/supply/cpcap-battery.c +++ b/drivers/power/supply/cpcap-battery.c @@ -626,7 +626,7 @@ 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); |