This is a note to let you know that I've just added the patch titled
ALSA: hda: cs35l56: Fix lifecycle of codec pointer
to the 6.6-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:
alsa-hda-cs35l56-fix-lifecycle-of-codec-pointer.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 6bd6d7e322931cd7e142095a40b4ea325969cc68
Author: Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri May 31 12:27:16 2024 +0100
ALSA: hda: cs35l56: Fix lifecycle of codec pointer
[ Upstream commit d339131bf02d4ed918415574082caf5e8af6e664 ]
The codec should be cleared when the amp driver is unbound and when
resuming it should be tested to prevent loading firmware into the device
and ALSA in a partially configured system state.
Signed-off-by: Simon Trimmer <simont@xxxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20240531112716.25323-1-simont@xxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/pci/hda/cs35l56_hda.c b/sound/pci/hda/cs35l56_hda.c
index 78e2eeba49345..b84f3b3eb1409 100644
--- a/sound/pci/hda/cs35l56_hda.c
+++ b/sound/pci/hda/cs35l56_hda.c
@@ -702,6 +702,8 @@ static void cs35l56_hda_unbind(struct device *dev, struct device *master, void *
if (comps[cs35l56->index].dev == dev)
memset(&comps[cs35l56->index], 0, sizeof(*comps));
+ cs35l56->codec = NULL;
+
dev_dbg(cs35l56->base.dev, "Unbound\n");
}
@@ -807,6 +809,9 @@ static int cs35l56_hda_system_resume(struct device *dev)
cs35l56->suspended = false;
+ if (!cs35l56->codec)
+ return 0;
+
ret = cs35l56_is_fw_reload_needed(&cs35l56->base);
dev_dbg(cs35l56->base.dev, "fw_reload_needed: %d\n", ret);
if (ret > 0) {
