This is a note to let you know that I've just added the patch titled
ASoC: SOF: loader: release_firmware() on load failure to avoid batching
to the 5.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-sof-loader-release_firmware-on-load-failure-to-.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 05ce614e253f5bfaaaaeea40f26b96c8ef9fb7e6
Author: Marc Herbert <marc.herbert@xxxxxxxxx>
Date: Thu Sep 16 11:50:08 2021 +0300
ASoC: SOF: loader: release_firmware() on load failure to avoid batching
[ Upstream commit 8a8e1813ffc35111fc0b6db49968ceb0e1615ced ]
Invoke release_firmware() when the firmware fails to boot in
sof_probe_continue().
The request_firmware() framework must be informed of failures in
sof_probe_continue() otherwise its internal "batching"
feature (different from caching) cached the firmware image
forever. Attempts to correct the file in /lib/firmware/ were then
silently and confusingly ignored until the next reboot. Unloading the
drivers did not help because from their disconnected perspective the
firmware had failed so there was nothing to release.
Also leverage the new snd_sof_fw_unload() function to simplify the
snd_sof_device_remove() function.
Signed-off-by: Marc Herbert <marc.herbert@xxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@xxxxxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20210916085008.28929-1-peter.ujfalusi@xxxxxxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/sof/core.c b/sound/soc/sof/core.c
index 3e4dd4a86363..59d0d7b2b55c 100644
--- a/sound/soc/sof/core.c
+++ b/sound/soc/sof/core.c
@@ -371,7 +371,6 @@ int snd_sof_device_remove(struct device *dev)
dev_warn(dev, "error: %d failed to prepare DSP for device removal",
ret);
- snd_sof_fw_unload(sdev);
snd_sof_ipc_free(sdev);
snd_sof_free_debug(sdev);
snd_sof_free_trace(sdev);
@@ -394,8 +393,7 @@ int snd_sof_device_remove(struct device *dev)
snd_sof_remove(sdev);
/* release firmware */
- release_firmware(pdata->fw);
- pdata->fw = NULL;
+ snd_sof_fw_unload(sdev);
return 0;
}
diff --git a/sound/soc/sof/loader.c b/sound/soc/sof/loader.c
index 2b38a77cd594..9c3f251a0dd0 100644
--- a/sound/soc/sof/loader.c
+++ b/sound/soc/sof/loader.c
@@ -880,5 +880,7 @@ EXPORT_SYMBOL(snd_sof_run_firmware);
void snd_sof_fw_unload(struct snd_sof_dev *sdev)
{
/* TODO: support module unloading at runtime */
+ release_firmware(sdev->pdata->fw);
+ sdev->pdata->fw = NULL;
}
EXPORT_SYMBOL(snd_sof_fw_unload);
