diff options
| author | Tony Lindgren <tony@atomide.com> | 2022-10-28 14:00:44 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-25 19:45:43 +0300 |
| commit | 7e1f908e65c56b06c2ccdc1c8c8034bbb1e2de62 (patch) | |
| tree | 444a9ab7312bbc9ffd779310b86b852555166400 | |
| parent | d833cba201adf9237168e19f0d76e4d7aa69f303 (diff) | |
| download | linux-7e1f908e65c56b06c2ccdc1c8c8034bbb1e2de62.tar.xz | |
serial: 8250: omap: Flush PM QOS work on remove
[ Upstream commit d0b68629bd2fb61e0171a62f2e8da3db322f5cf6 ]
Rebinding 8250_omap in a loop will at some point produce a warning for
kernel/power/qos.c:296 cpu_latency_qos_update_request() with error
"cpu_latency_qos_update_request called for unknown object". Let's flush
the possibly pending PM QOS work scheduled from omap8250_runtime_suspend()
before we disable runtime PM.
Fixes: 61929cf0169d ("tty: serial: Add 8250-core based omap driver")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20221028110044.54719-1-tony@atomide.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/tty/serial/8250/8250_omap.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c index 57524950b8dc..3f7379f16a36 100644 --- a/drivers/tty/serial/8250/8250_omap.c +++ b/drivers/tty/serial/8250/8250_omap.c @@ -1483,6 +1483,7 @@ static int omap8250_remove(struct platform_device *pdev) pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_put_sync(&pdev->dev); + flush_work(&priv->qos_work); pm_runtime_disable(&pdev->dev); serial8250_unregister_port(priv->line); cpu_latency_qos_remove_request(&priv->pm_qos_request); |