[PATCH] fix for possible crash in cdda_identify_scsi() (interface/scan_devices.c)

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Hi!

I always got a SIGSEGV in a KDE cd burning tool (k3b) after turning off my 
SCSI-scanner. 

With the help of SuSE, I now found out that the crash was caused by 
cdparanoia-III-alpha9.8.

Please see the attached patch - NULL value of the result of scsi_inquiry() 
wasn't checked correctly which lead to a SIGSEGV in strncmp() naturally...

If this is not the right place to send patches to, please tell me what it 
is... ;-)

- -- 
Ciao,

Gernot
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diff -uNr cdparanoia-III-alpha9.8/interface/scan_devices.c cdparanoia-III-alpha9.8-new/interface/scan_devices.c
--- cdparanoia-III-alpha9.8/interface/scan_devices.c	Mon Mar 26 07:44:01 2001
+++ cdparanoia-III-alpha9.8-new/interface/scan_devices.c	Thu Sep 19 16:47:56 2002
@@ -617,7 +617,7 @@
 
   /* It would seem some TOSHIBA CDROMs gets things wrong */
  
-  if (!strncmp (p + 8, "TOSHIBA", 7) &&
+  if (p && !strncmp (p + 8, "TOSHIBA", 7) &&
       !strncmp (p + 16, "CD-ROM", 6) &&
       p[0] == TYPE_DISK) {
     p[0] = TYPE_ROM;