Some devices may expose non-functioning entries that are reserved for future use. These entries have zero size. Ignore them during probe. Signed-off-by: David E. Box <david.e.box@xxxxxxxxxxxxxxx> --- V2: New patch drivers/platform/x86/intel/pmt/telemetry.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/platform/x86/intel/pmt/telemetry.c b/drivers/platform/x86/intel/pmt/telemetry.c index 3559f6e7b388..d93d02672679 100644 --- a/drivers/platform/x86/intel/pmt/telemetry.c +++ b/drivers/platform/x86/intel/pmt/telemetry.c @@ -61,6 +61,14 @@ static int pmt_telem_header_decode(struct intel_pmt_entry *entry, /* Size is measured in DWORDS, but accessor returns bytes */ header->size = TELEM_SIZE(readl(disc_table)); + /* + * Some devices may expose non-functioning entries that are + * reserved for future use. They have zero size. Do not fail + * probe for these. Just ignore them. + */ + if (header->size == 0) + return 1; + return 0; } -- 2.25.1
