Messages in this thread Patch in this message | | | From | Kevin Strasser <> | Subject | [PATCH] ASoC: Intel: fix possible acpi enumeration panic | Date | Wed, 10 Dec 2014 23:21:57 -0800 |
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A crash can occur on some platforms where adsp is enumerated but codec is not matched. Check that the codec_id string is valid before attempting to match.
Signed-off-by: Kevin Strasser <kevin.strasser@intel.com> --- sound/soc/intel/sst/sst_acpi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/intel/sst/sst_acpi.c b/sound/soc/intel/sst/sst_acpi.c index 31124aa..dd72e58 100644 --- a/sound/soc/intel/sst/sst_acpi.c +++ b/sound/soc/intel/sst/sst_acpi.c @@ -236,7 +236,7 @@ static struct sst_machines *sst_acpi_find_machine( struct sst_machines *mach; bool found = false; - for (mach = machines; mach->codec_id; mach++) + for (mach = machines; mach->codec_id[0]; mach++) if (ACPI_SUCCESS(acpi_get_devices(mach->codec_id, sst_acpi_mach_match, &found, NULL)) && found) -- 1.9.1
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