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author | Sreekanth Reddy <Sreekanth.Reddy@lsi.com> | 2013-07-25 11:32:51 +0530 |
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committer | James Bottomley <JBottomley@Parallels.com> | 2013-09-03 07:27:52 -0700 |
commit | 63e359d42119d803912e5f24dc1c56d168acedeb (patch) | |
tree | ad02de29e3ed8f45235dfc5df2da298207b3bc0f /drivers/scsi/gdth_ioctl.h | |
parent | bc6d4c3b78d1320606f99905e2a9fa86b246b449 (diff) |
[SCSI] mpt2sas: Fix for kernel panic when driver loads with HBA connected to non LUN 0 configured expander
With some enclosures when LUN 0 is not created but LUN 1 or LUN X is created
then SCSI scan procedure calls target_alloc, slave_alloc call back functions
for LUN 0 and slave_destory() for same LUN 0.
In these kind of cases within slave_destroy, pointer to scsi_target in
_sas_device structure is set to NULL, following which when slave_alloc for
LUN 1 is called then starget would not be set properly for this LUN.
So, scsi_target pointer pointing to NULL value would lead to a crash later
in the discovery procedure.
To solve this issue set the sas_device's scsi_target pointer to scsi_device's
scsi_target if it is NULL earlier in slave_alloc callback function.
Signed-off-by: Sreekanth Reddy <Sreekanth.Reddy@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/gdth_ioctl.h')
0 files changed, 0 insertions, 0 deletions