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| author | Jack Wang <jinpu.wang@profitbricks.com> | 2015-11-05 12:33:45 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2015-11-09 19:36:50 -0500 |
| commit | 4024593d5d9cc0002184f1748b7cdb1705f08e05 (patch) | |
| tree | b79f804b3b1cada67ce55531d5c552c3be4e5475 | |
| parent | 4927f1fcf9afc0043a4a88c98cb7cb6caec11ff1 (diff) | |
| download | linux-stable-4024593d5d9cc0002184f1748b7cdb1705f08e05.tar.gz linux-stable-4024593d5d9cc0002184f1748b7cdb1705f08e05.tar.bz2 linux-stable-4024593d5d9cc0002184f1748b7cdb1705f08e05.zip | |
aic94xx: remove SCSI host before detaching from SAS transport
commit cff549e4860f ("scsi: proper state checking and module refcount
handling in scsi_device_get") the reference count of scsi device was
changed, which could lead to when rmmod with at least on drive attached,
SCSI error handle will run into infinite loop, and lockup the system.
Fix it by remove scsi host first, this way scsi core will not send
commands down after detaching SAS transport.
This is a follow up fix for Benjamin's fix for pm80xx.
See also:
http://www.spinics.net/lists/linux-scsi/msg90088.html
Signed-off-by: Jack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
| -rw-r--r-- | drivers/scsi/aic94xx/aic94xx_init.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c index f6c336b05d5b..4b56976d9a9a 100644 --- a/drivers/scsi/aic94xx/aic94xx_init.c +++ b/drivers/scsi/aic94xx/aic94xx_init.c @@ -704,10 +704,10 @@ static int asd_unregister_sas_ha(struct asd_ha_struct *asd_ha) { int err; + scsi_remove_host(asd_ha->sas_ha.core.shost); err = sas_unregister_ha(&asd_ha->sas_ha); sas_remove_host(asd_ha->sas_ha.core.shost); - scsi_remove_host(asd_ha->sas_ha.core.shost); scsi_host_put(asd_ha->sas_ha.core.shost); kfree(asd_ha->sas_ha.sas_phy); |