| Message ID | 20220317131604.53538-1-zhengyongjun3@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Input: fix reference leak in stmfts_input_open | expand |
On Thu, Mar 17, 2022 at 01:16:04PM +0000, Zheng Yongjun wrote: > pm_runtime_get_sync() will increment pm usage counter even it > failed. Forgetting to call pm_runtime_put_noidle will result > in reference leak in stmfts_input_open, so we should fix it. > > Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> Applied, thank you.
diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c index bc11203c9cf7..72e0b767e1ba 100644 --- a/drivers/input/touchscreen/stmfts.c +++ b/drivers/input/touchscreen/stmfts.c @@ -339,11 +339,11 @@ static int stmfts_input_open(struct input_dev *dev) err = pm_runtime_get_sync(&sdata->client->dev); if (err < 0) - return err; + goto out; err = i2c_smbus_write_byte(sdata->client, STMFTS_MS_MT_SENSE_ON); if (err) - return err; + goto out; mutex_lock(&sdata->mutex); sdata->running = true; @@ -366,7 +366,9 @@ static int stmfts_input_open(struct input_dev *dev) "failed to enable touchkey\n"); } - return 0; +out: + pm_runtime_put_noidle(&sdata->client->dev); + return err; } static void stmfts_input_close(struct input_dev *dev)
pm_runtime_get_sync() will increment pm usage counter even it failed. Forgetting to call pm_runtime_put_noidle will result in reference leak in stmfts_input_open, so we should fix it. Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com> --- drivers/input/touchscreen/stmfts.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)