Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 054/205] scsi: qla2xxx: Fix early srb free on abort | Date | Mon, 19 Nov 2018 17:26:01 +0100 |
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4.19-stable review patch. If anyone has any objections, please let me know.
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From: Quinn Tran <quinn.tran@cavium.com>
commit 8235f4b5aeba868739f6e12a51ad92689e3f78ef 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: f6145e86d21f ("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>
--- drivers/scsi/qla2xxx/qla_init.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -1788,6 +1788,8 @@ qla24xx_async_abort_cmd(srb_t *cmd_sp, b 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:
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