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qla2x00t-32gbit: Fix memory leak when sending I/O fails

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

Fixes: 219d27d7147e0 ("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.com
Reviewed-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

[ commit 2f856d4e8c23f5ad5221f8da4a2f22d090627f19 upstream ]


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@8716 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2019-12-26 00:22:26 +00:00
parent e6f87e326f
commit 2888c8de2e
1 changed files with 4 additions and 0 deletions
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4
qla2x00t-32gbit/qla_os.c
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@@ -946,6 +946,8 @@ qla2xxx_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
qc24_host_busy_free_sp:
sp->free(sp);
CMD_SP(cmd) = NULL;
qla2x00_rel_sp(sp);
qc24_target_busy:
return SCSI_MLQUEUE_TARGET_BUSY;
@@ -1029,6 +1031,8 @@ qla2xxx_mqueuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd,
qc24_host_busy_free_sp:
sp->free(sp);
CMD_SP(cmd) = NULL;
qla2xxx_rel_qpair_sp(sp->qpair, sp);
qc24_target_busy:
return SCSI_MLQUEUE_TARGET_BUSY;