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| author | Oliver Neukum <oneukum@suse.com> | 2019-09-03 12:18:39 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-09-30 23:52:14 -0400 |
| commit | 21e3d6c81179bbdfa279efc8de456c34b814cfd2 (patch) | |
| tree | 605980d8e3d8b11c180eb31ec230ddf3c0b570dc /drivers/scsi/sd.c | |
| parent | 0aabb6b699f72dca96988d3f428e222f932dc889 (diff) | |
| download | linux-21e3d6c81179bbdfa279efc8de456c34b814cfd2.tar.gz linux-21e3d6c81179bbdfa279efc8de456c34b814cfd2.tar.bz2 linux-21e3d6c81179bbdfa279efc8de456c34b814cfd2.zip | |
scsi: sd: Ignore a failure to sync cache due to lack of authorization
I've got a report about a UAS drive enclosure reporting back Sense: Logical
unit access not authorized if the drive it holds is password protected.
While the drive is obviously unusable in that state as a mass storage
device, it still exists as a sd device and when the system is asked to
perform a suspend of the drive, it will be sent a SYNCHRONIZE CACHE. If
that fails due to password protection, the error must be ignored.
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190903101840.16483-1-oneukum@suse.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/sd.c')
| -rw-r--r-- | drivers/scsi/sd.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 91af598f2f53..0f96eb0ddbfa 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1655,7 +1655,8 @@ static int sd_sync_cache(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr) /* we need to evaluate the error return */ if (scsi_sense_valid(sshdr) && (sshdr->asc == 0x3a || /* medium not present */ - sshdr->asc == 0x20)) /* invalid command */ + sshdr->asc == 0x20 || /* invalid command */ + (sshdr->asc == 0x74 && sshdr->ascq == 0x71))) /* drive is password locked */ /* this is no error here */ return 0; |