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scsi: qla2xxx: Fix early srb free on abort

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commit 8235f4b5ae upstream.

Task abort can take 2 paths: 1) serial/synchronous abort where the calling
thread will put to sleep, wait for completion and free cmd resource.  2) async
abort where the cmd free will be free by the completion thread.  For path 2,
driver is freeing the SRB too early.

Fixes: f6145e86d2 ("scsi: qla2xxx: Fix race between switch cmd completion and timeout")
Cc: stable@vger.kernel.org # 4.19
Signed-off-by: Quinn Tran <quinn.tran@cavium.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>
This commit is contained in:
Quinn Tran
2018-09-11 10:18:19 -07:00
committed by Greg Kroah-Hartman
parent 731fe8aaa8
commit c97c9cfb4d
1 changed files with 2 additions and 0 deletions
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2
drivers/scsi/qla2xxx/qla_init.c
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@@ -1788,6 +1788,8 @@ qla24xx_async_abort_cmd(srb_t *cmd_sp, bool wait)
wait_for_completion(&abt_iocb->u.abt.comp);
rval = abt_iocb->u.abt.comp_status == CS_COMPLETE ?
QLA_SUCCESS : QLA_FUNCTION_FAILED;
} else {
goto done;
}
done_free_sp: