On heavy loads, a memory leak of the srb_t structure is observed.  This
would make the qla2xxx_srbs cache gobble up memory.

Fixes: 219d27d7 ("scsi: qla2xxx: Fix race conditions in the code for aborting SCSI commands")
Cc: stable@vger.kernel.org # 5.2
Link: https://lore.kernel.org/r/20191105150657.8092-7-hmadhani@marvell.comReviewed-by: NEwan D. Milne <emilne@redhat.com>
Signed-off-by: NArun Easi <aeasi@marvell.com>
Signed-off-by: NHimanshu Madhani <hmadhani@marvell.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>