Module Name:	src
Committed By:	bouyer
Date:		Thu Dec  8 22:14:19 UTC 2005

Modified Files:
	src/sys/dev/scsipi: sd.c

Log Message:
Some USB devices reports themselves as removable, but have no door and
so don't support the SCSI_PREVENT_ALLOW_MEDIUM_REMOVAL command.
When an "Illegal field in CDB" is reported for this command, mark the
device as non-removable (which is always true for USB keys from the SCSI
point of view), print a message and ignore the error.
For DIOCLOCK, return ENOTTY if the device is not removable instead of
trying a command which will fail.

Fix a problem reported by Hubert Feyrer for some USB umass devices, patch
tested by him.


To generate a diff of this commit:
cvs rdiff -r1.241 -r1.242 src/sys/dev/scsipi/sd.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.