Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 12/97] Input: stmfts - fix reference leak in stmfts_input_open | Date | Mon, 23 May 2022 19:05:16 +0200 |
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From: Zheng Yongjun <zhengyongjun3@huawei.com>
[ Upstream commit 26623eea0da3476446909af96c980768df07bbd9 ]
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> Link: https://lore.kernel.org/r/20220317131604.53538-1-zhengyongjun3@huawei.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- drivers/input/touchscreen/stmfts.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c index 9a64e1dbc04a..64b690a72d10 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) -- 2.35.1
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