| Message ID | 20221028105813.54290-1-tony@atomide.com |
|---|---|
| State | New |
| Headers | show |
| Series | serial: 8250: omap: Fix unpaired pm_runtime_put_sync() in omap8250_remove() | expand |
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -1476,6 +1476,11 @@ static int omap8250_probe(struct platform_device *pdev) static int omap8250_remove(struct platform_device *pdev) { struct omap8250_priv *priv = platform_get_drvdata(pdev); + int err; + + err = pm_runtime_resume_and_get(&pdev->dev); + if (err) + return err; pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_put_sync(&pdev->dev);
On remove, we get an error for "Runtime PM usage count underflow!". I guess this driver is mostly built-in, and this issue has gone unnoticed for a while. Somehow I did not catch this issue with my earlier fix done with commit 4e0f5cc65098 ("serial: 8250_omap: Fix probe and remove for PM runtime"). Fixes: 4e0f5cc65098 ("serial: 8250_omap: Fix probe and remove for PM runtime") Depends-on: dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter") Signed-off-by: Tony Lindgren <tony@atomide.com> --- drivers/tty/serial/8250/8250_omap.c | 5 +++++ 1 file changed, 5 insertions(+)