From 798614885a0e1b867ceb0197c30c2d82575c73b0 Mon Sep 17 00:00:00 2001
From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Date: Fri, 27 Sep 2019 15:05:26 -0500
Subject: [PATCH] ASoC: SOF: loader: fix kernel oops on firmware boot failure
Git-commit: 798614885a0e1b867ceb0197c30c2d82575c73b0
Patch-mainline: v5.4-rc5
References: git-fixes bnc#1151927 5.3.10
When we fail to boot the firmware, we encounter a kernel oops in
hda_dsp_get_registers(), which is called conditionally in
hda_dsp_dump() when the sdev_>boot_complete flag is set.
Setting this flag _after_ dumping the data fixes the issue and does
not change the programming flow.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190927200538.660-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/sof/loader.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/sof/loader.c b/sound/soc/sof/loader.c
index d7f32745fefe..9a9a381a908d 100644
--- a/sound/soc/sof/loader.c
+++ b/sound/soc/sof/loader.c
@@ -546,10 +546,10 @@ int snd_sof_run_firmware(struct snd_sof_dev *sdev)
msecs_to_jiffies(sdev->boot_timeout));
if (ret == 0) {
dev_err(sdev->dev, "error: firmware boot failure\n");
- /* after this point FW_READY msg should be ignored */
- sdev->boot_complete = true;
snd_sof_dsp_dbg_dump(sdev, SOF_DBG_REGS | SOF_DBG_MBOX |
SOF_DBG_TEXT | SOF_DBG_PCI);
+ /* after this point FW_READY msg should be ignored */
+ sdev->boot_complete = true;
return -EIO;
}
--
2.16.4