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ASoC: SOF: loader: fix kernel oops on firmware boot failure 

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>
This commit is contained in:
Pierre-Louis Bossart 2019-09-27 15:05:26 -05:00 committed by Mark Brown
parent 9daf4fd030
commit 798614885a
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GPG Key ID: 24D68B725D5487D0
1 changed files with 2 additions and 2 deletions
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4
sound/soc/sof/loader.c
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@ -546,10 +546,10 @@ int snd_sof_run_firmware(struct snd_sof_dev *sdev)
msecs_to_jiffies(sdev->boot_timeout)); msecs_to_jiffies(sdev->boot_timeout));
if (ret == 0) { if (ret == 0) {
dev_err(sdev->dev, "error: firmware boot failure\n"); 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 | snd_sof_dsp_dbg_dump(sdev, SOF_DBG_REGS | SOF_DBG_MBOX |
SOF_DBG_TEXT | SOF_DBG_PCI); SOF_DBG_TEXT | SOF_DBG_PCI);
/* after this point FW_READY msg should be ignored */
sdev->boot_complete = true;
return -EIO; return -EIO;
} }