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remoteproc: core: Do pm_relax when in RPROC_OFFLINE state

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commit 11c7f9e313 upstream.

Make sure that pm_relax() happens even when the remoteproc
is stopped before the crash handler work is scheduled.

Signed-off-by: Maria Yu <quic_aiquny@quicinc.com>
Cc: stable <stable@vger.kernel.org>
Fixes: a781e5aa59 ("remoteproc: core: Prevent system suspend during remoteproc recovery")
Link: https://lore.kernel.org/r/20221206015957.2616-2-quic_aiquny@quicinc.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Maria Yu 2022-12-06 09:59:57 +08:00 committed by Greg Kroah-Hartman
parent b9693304b7
commit e2e8d55f04
1 changed files with 8 additions and 1 deletions
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9
drivers/remoteproc/remoteproc_core.c
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@ -1868,12 +1868,18 @@ static void rproc_crash_handler_work(struct work_struct *work)
mutex_lock(&rproc->lock);
if (rproc->state == RPROC_CRASHED || rproc->state == RPROC_OFFLINE) {
if (rproc->state == RPROC_CRASHED) {
/* handle only the first crash detected */
mutex_unlock(&rproc->lock);
return;
}
if (rproc->state == RPROC_OFFLINE) {
/* Don't recover if the remote processor was stopped */
mutex_unlock(&rproc->lock);
goto out;
}
rproc->state = RPROC_CRASHED;
dev_err(dev, "handling crash #%u in %s\n", ++rproc->crash_cnt,
rproc->name);
@ -1883,6 +1889,7 @@ static void rproc_crash_handler_work(struct work_struct *work)
if (!rproc->recovery_disabled)
rproc_trigger_recovery(rproc);
out:
pm_relax(rproc->dev.parent);
}