commit 0359436fdd467acd70c9fefa471570681d31e619
Author: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Date:   Sun Jan 24 22:37:38 2021 +0530

    sysfs: Fix PCI device manufacturer parsing logic
    
    If we fail to get manufacturer name using subsystem vendor ID
    then use vendor ID to get manufacturer name.
    
    Sample output diff with the this fix:
    ------------------------------------
     *AX 0032:00
     *YL 0032:00
     *FC
    -*DS usb-xhci (00008241)
    +*DS usb-xhci (104c8241)
     *AX 0005:01:00.0
     *AX wakeup0
     *AX usbmon1
     *AX usbmon2
     *AX usb-xhci
    -*MF Unknown
    +*MF Texas Instruments
     *TM TUSB73x0 SuperSpeed USB 3.0 xHCI Host Controller
    -*CD 00008241
    +*CD 104c8241
    
    Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>

diff --git a/src/internal/sys_interface/sysfstreecollector.cpp b/src/internal/sys_interface/sysfstreecollector.cpp
index 70fcc1b..9e808de 100644
--- a/src/internal/sys_interface/sysfstreecollector.cpp
+++ b/src/internal/sys_interface/sysfstreecollector.cpp
@@ -1434,7 +1434,8 @@ ERROR:
 		if( mPciTable != NULL )
 		{
 			// Fill Manufacturer Name
-			if( subMan == UNKNOWN_ID )
+			if( subMan == UNKNOWN_ID ||
+			    (mPciTable->getName( subMan ) == "Unknown") )
 			{
 				if( manID != UNKNOWN_ID )
 				{