From: Hannes Reinecke <hare@suse.de>
To: "Martin K. Petersen" <martin.petersen@oracle.com>
Cc: James Bottomley <james.bottomley@hansenpartnership.com>,
linux-scsi@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
Hannes Reinecke <hare@suse.de>,
Johannes Thumshirn <johannes.thumshirn@wdc.com>
Subject: [PATCH 09/18] aic79xx: do not reference scsi command when resetting device
Date: Mon, 2 Oct 2023 17:43:19 +0200 [thread overview]
Message-ID: <20231002154328.43718-10-hare@suse.de> (raw)
In-Reply-To: <20231002154328.43718-1-hare@suse.de>
When sending a device reset we should not take a reference to the
scsi command.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
drivers/scsi/aic7xxx/aic79xx_osm.c | 21 +++++++++++++++------
1 file changed, 15 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c
index 7e5253da04cd..b3075a022d99 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.c
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.c
@@ -536,8 +536,10 @@ ahd_linux_unmap_scb(struct ahd_softc *ahd, struct scb *scb)
struct scsi_cmnd *cmd;
cmd = scb->io_ctx;
- ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE);
- scsi_dma_unmap(cmd);
+ if (cmd) {
+ ahd_sync_sglist(ahd, scb, BUS_DMASYNC_POSTWRITE);
+ scsi_dma_unmap(cmd);
+ }
}
/******************************** Macros **************************************/
@@ -814,7 +816,7 @@ ahd_linux_dev_reset(struct scsi_cmnd *cmd)
tinfo = ahd_fetch_transinfo(ahd, 'A', ahd->our_id,
cmd->device->id, &tstate);
- reset_scb->io_ctx = cmd;
+ reset_scb->io_ctx = NULL;
reset_scb->platform_data->dev = dev;
reset_scb->sg_count = 0;
ahd_set_residual(reset_scb, 0);
@@ -1769,9 +1771,16 @@ ahd_done(struct ahd_softc *ahd, struct scb *scb)
dev = scb->platform_data->dev;
dev->active--;
dev->openings++;
- if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) {
- cmd->result &= ~(CAM_DEV_QFRZN << 16);
- dev->qfrozen--;
+ if (cmd) {
+ if ((cmd->result & (CAM_DEV_QFRZN << 16)) != 0) {
+ cmd->result &= ~(CAM_DEV_QFRZN << 16);
+ dev->qfrozen--;
+ }
+ } else if (scb->flags & SCB_DEVICE_RESET) {
+ if (ahd->platform_data->eh_done)
+ complete(ahd->platform_data->eh_done);
+ ahd_free_scb(ahd, scb);
+ return;
}
ahd_linux_unmap_scb(ahd, scb);
--
2.35.3
next prev parent reply other threads:[~2023-10-02 15:43 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-02 15:43 [PATCHv5 00/18] scsi: EH rework prep patches, part 1 Hannes Reinecke
2023-10-02 15:43 ` [PATCH 01/18] mptfc: simplify mptfc_block_error_handler() Hannes Reinecke
2023-10-02 15:43 ` [PATCH 02/18] mptfusion: correct definitions for mptscsih_dev_reset() Hannes Reinecke
2023-10-02 15:43 ` [PATCH 03/18] mptfc: open-code mptfc_block_error_handler() for bus reset Hannes Reinecke
2023-10-02 15:43 ` [PATCH 04/18] qedf: use fc rport as argument for qedf_initiate_tmf() Hannes Reinecke
2023-10-02 15:43 ` [PATCH 05/18] bnx2fc: Do not rely on a scsi command for lun or target reset Hannes Reinecke
2023-10-02 15:43 ` [PATCH 06/18] aic7xxx: make BUILD_SCSIID() a function Hannes Reinecke
2023-10-12 8:26 ` Christoph Hellwig
2023-10-13 17:59 ` Martin K. Petersen
2023-10-02 15:43 ` [PATCH 07/18] aic7xxx: do not reference scsi command when resetting device Hannes Reinecke
2023-10-02 15:43 ` [PATCH 08/18] aic79xx: make BUILD_SCSIID() a function Hannes Reinecke
2023-10-12 8:26 ` Christoph Hellwig
2023-10-13 17:59 ` Martin K. Petersen
2023-10-02 15:43 ` Hannes Reinecke [this message]
2023-10-02 15:43 ` [PATCH 10/18] ibmvfc: open-code reset loop for target reset Hannes Reinecke
2023-10-02 15:43 ` [PATCH 11/18] megaraid: pass in NULL scb for host reset Hannes Reinecke
2023-10-02 15:43 ` [PATCH 12/18] ips: Do not try to abort command from " Hannes Reinecke
2023-10-02 15:43 ` [PATCH 13/18] sym53c8xx_2: split off bus reset " Hannes Reinecke
2023-10-02 15:43 ` [PATCH 14/18] sym53c8xx_2: rework reset handling Hannes Reinecke
2023-10-02 15:43 ` [PATCH 15/18] qla1280: separate out host reset function from qla1280_error_action() Hannes Reinecke
2023-10-02 15:43 ` [PATCH 16/18] pmcraid: Select device in pmcraid_eh_bus_reset_handler() Hannes Reinecke
2023-10-02 15:43 ` [PATCH 17/18] pmcraid: select device in pmcraid_eh_target_reset_handler() Hannes Reinecke
2023-10-05 12:26 ` John Garry
2023-10-09 7:52 ` Hannes Reinecke
2023-10-02 15:43 ` [PATCH 18/18] mpi3mr: split off bus_reset function from host_reset Hannes Reinecke
2023-10-13 18:26 ` [PATCHv5 00/18] scsi: EH rework prep patches, part 1 Martin K. Petersen
2023-10-17 1:11 ` Martin K. Petersen
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