zfcp: restore: Dont use 0 to indicate invalid LUN in rec trace
bring back commit d21e9daa ("[SCSI] zfcp: Dont use 0 to indicate invalid LUN in rec trace") which was lost with commit ae0904f6 ("[SCSI] zfcp: Redesign of the debug tracing for recovery actions.") Signed-off-by: NSteffen Maier <maier@linux.vnet.ibm.com> Fixes: ae0904f6 ("[SCSI] zfcp: Redesign of the debug tracing for recovery actions.") Cc: <stable@vger.kernel.org> #2.6.38+ Reviewed-by: NBenjamin Block <bblock@linux.vnet.ibm.com> Reviewed-by: NHannes Reinecke <hare@suse.com> Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>
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