If pm_runtime_resume_and_get() failed with -EACCES, the driver continued
execution and finally called pm_runtime_put_autosuspend(). Since
pm_runtime_resume_and_get() drops the usage counter on every error, this
lead to double decrement of that counter.
Fixes: b275bf45ba1d ("soundwire: debugfs: Switch to sdw_read_no_pm")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
drivers/soundwire/debugfs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/soundwire/debugfs.c b/drivers/soundwire/debugfs.c
index dea782e0edc4..c3a1a359ee5c 100644
--- a/drivers/soundwire/debugfs.c
+++ b/drivers/soundwire/debugfs.c
@@ -56,8 +56,9 @@ static int sdw_slave_reg_show(struct seq_file *s_file, void *data)
if (!buf)
return -ENOMEM;
- ret = pm_runtime_resume_and_get(&slave->dev);
+ ret = pm_runtime_get_sync(&slave->dev);
if (ret < 0 && ret != -EACCES) {
+ pm_runtime_put_noidle(&slave->dev);
kfree(buf);
return ret;
}
--
2.34.1
