Your commit:
[SCSI] ses: Avoid kernel panic when lun 0 is not mapped
During device discovery, scsi mid layer sends INQUIRY command to LUN
0. If the LUN 0 is not mapped to host, it creates a temporary
scsi_device with LUN id 0 and sends REPORT_LUNS command to it. After
the REPORT_LUNS succeeds, it walks through the LUN table and adds each
LUN found to sysfs. At the end of REPORT_LUNS lun table scan, it will
delete the temporary scsi_device of LUN 0.
When scsi devices are added to sysfs, it calls add_dev function of all
the registered class interfaces. If ses driver has been registered,
ses_intf_add() of ses module will be called. This function calls
scsi_device_enclosure() to check the inquiry data for EncServ
bit. Since inquiry was not allocated for temporary LUN 0 scsi_device,
it will cause NULL pointer exception.
To fix the problem, sdev->inquiry is checked for NULL before reading it.
Signed-off-by: Somasundaram Krishnasamy <[email protected]>
Signed-off-by: Babu Moger <[email protected]>
Cc: [email protected]
Signed-off-by: James Bottomley <[email protected]>
has been added to the upstream SCSI tree
You can find it here:
http://git.kernel.org/?p=linux/kernel/git/jejb/scsi-misc-2.6.git;a=commit;h=643614fe0586194d2b0135b768a417ad6d2b4892
This patch is scheduled to be pushed when the merge window opens for 2.6.39
James Bottomley
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