scsi: qla2xxx: Fix duplicate switch database entries
commit
732ee9a912cf2d9a50c5f9c4213cdc2f885d6aa6 upstream.
The response data buffer used in switch scan is reused 4 times. (For example,
for commands GPN_FT, GNN_FT for FCP and FC-NVME) Before driver reuses this
buffer, clear it to prevent duplicate entries in our database.
Fixes:
a4239945b8ad1 ("scsi: qla2xxx: Add switch command to simplify fabric discovery"
Cc: <stable@vger.kernel.org>
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>