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-rw-r--r--tools/serial_probe/serial.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/serial_probe/serial.c b/tools/serial_probe/serial.c
index 9ae3924c3..c84cbcff5 100644
--- a/tools/serial_probe/serial.c
+++ b/tools/serial_probe/serial.c
@@ -993,7 +993,8 @@ struct device *serialProbe(enum deviceClass probeClass, int probeFlags,
goto endprobe;
/* see if we found any PnP signature */
- if (pnp_strlen != 0) {
+ if (pnp_strlen != 0 && (pnp_strlen != 1 || pnp_string[0] != 'M')) {
+
/* fill in the PnP com structure */
if (parse_pnp_string( pnp_string, pnp_strlen, &pnp_id )<0) {
DEBUG("Got PNP data back, but failed to parse. Aborting\n");