fusion: fibre channel: stall eh handlers if resetting while rport blocked

This patch applies against 2.6.18-git7.
Thanks to James Smart for the inspiration.

Stall error handler if attempting recovery while an rport is blocked. This avoids device offline scenarios due to errors in the error handler. Also verify that VirtDevice is available before issuing scsi command. VirtDevice is removed when fc transport removes a target.

See James Smart's patch of 08/17/2006 for greater detail.

http://marc.theaimsgroup.com/?l=linux-scsi&m=115583213624803&w=2

Also bump version number per Eric's request.

@@ -75,8 +75,8 @@
 #define COPYRIGHT	"Copyright (c) 1999-2005 " MODULEAUTHOR
 #endif
 
-#define MPT_LINUX_VERSION_COMMON	"3.04.01"
-#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.04.01"
+#define MPT_LINUX_VERSION_COMMON	"3.04.02"
+#define MPT_LINUX_PACKAGE_NAME		"@(#)mptlinux-3.04.02"
 #define WHAT_MAGIC_STRING		"@" "(" "#" ")"
 
 #define show_mptmod_ver(s,ver)  \