pm_runtime_get_sync() increases the device's usage count even when
reporting an error, so add a call to pm_runtime_put_noidle() in the
related error branches.
Fixes: 8b9ec0719834 ("i2c: Add Spreadtrum I2C controller driver")
Signed-off-by: Tobias Jordan <Tobias.Jordan@xxxxxxxxxxxxxx>
---
This is one of a number of patches for problems found using coccinelle
scripting in the SIL2LinuxMP project. The patch has been compile-tested;
it's based on linux-next-20180223.
For a discussion of the corresponding issue, see
https://marc.info/?l=linux-pm&m=151904483924999&w=2
drivers/i2c/busses/i2c-sprd.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/i2c/busses/i2c-sprd.c b/drivers/i2c/busses/i2c-sprd.c
index 25fcc3c1e32b..5dae56e9ef73 100644
--- a/drivers/i2c/busses/i2c-sprd.c
+++ b/drivers/i2c/busses/i2c-sprd.c
@@ -284,8 +284,10 @@ static int sprd_i2c_master_xfer(struct i2c_adapter *i2c_adap,
int im, ret;
ret = pm_runtime_get_sync(i2c_dev->dev);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_noidle(i2c_dev->dev);
return ret;
+ }
for (im = 0; im < num - 1; im++) {
ret = sprd_i2c_handle_msg(i2c_adap, &msgs[im], 0);
@@ -572,8 +574,10 @@ static int sprd_i2c_remove(struct platform_device *pdev)
int ret;
ret = pm_runtime_get_sync(i2c_dev->dev);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_noidle(i2c_dev->dev);
return ret;
+ }
i2c_del_adapter(&i2c_dev->adap);
clk_disable_unprepare(i2c_dev->clk);
--
2.11.0
