53c700: fix BUG on untagged commands
The untagged command case in the 53c700 driver has been broken since
host wide tags were enabled because the replaced scsi_find_tag()
function had a special case for the tag value SCSI_NO_TAG to retrieve
sdev->current_cmnd. The replacement function scsi_host_find_tag() has
no such special case and returns NULL causing untagged commands to
trigger a BUG() in the driver. Inspection shows that the 53c700 is the
only driver using this SCSI_NO_TAG case, so a local fix in the driver
suffices to fix this problem globally.
Fixes: 64d513ac31b - "scsi: use host wide tags by default"
Cc: [email protected] # 4.4+
Reported-by: Helge Deller <[email protected]>
Tested-by: Helge Deller <[email protected]>
Signed-off-by: James Bottomley <[email protected]>
Reviewed-by: Johannes Thumshirn <[email protected]>
Reviewed-by: Ewan D. Milne <[email protected]>
Acked-by: Christoph Hellwig <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
1 file changed
