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| author | Christoph Hellwig <hch@lst.de> | 2014-10-11 16:25:31 +0200 |
|---|---|---|
| committer | Christoph Hellwig <hch@lst.de> | 2014-11-12 11:16:11 +0100 |
| commit | 906d15fbd23c1267addab361063c1c8119992215 (patch) | |
| tree | 419ba148925c3651fe9337af24a932097e2c3d8a /drivers/scsi/sd.c | |
| parent | 176aa9d6ee2db582e7e856dbe1983004a82869b4 (diff) | |
| download | linux-906d15fbd23c1267addab361063c1c8119992215.tar.gz linux-906d15fbd23c1267addab361063c1c8119992215.tar.bz2 linux-906d15fbd23c1267addab361063c1c8119992215.zip | |
scsi: split scsi_nonblockable_ioctl
The calling conventions for this function are bad as it could return
-ENODEV both for a device not currently online and a not recognized ioctl.
Add a new scsi_ioctl_block_when_processing_errors function that wraps
scsi_block_when_processing_errors with the a special case for the
SG_SCSI_RESET ioctl command, and handle the SG_SCSI_RESET case itself
in scsi_ioctl. All callers of scsi_ioctl now must call the above helper
to check for the EH state, so that the ioctl handler itself doesn't
have to.
Reported-by: Robert Elliott <Elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Diffstat (limited to 'drivers/scsi/sd.c')
| -rw-r--r-- | drivers/scsi/sd.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 242f9b177285..ddf763ad3b83 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1334,9 +1334,9 @@ static int sd_ioctl(struct block_device *bdev, fmode_t mode, * may try and take the device offline, in which case all further * access to the device is prohibited. */ - error = scsi_nonblockable_ioctl(sdp, cmd, p, - (mode & FMODE_NDELAY) != 0); - if (!scsi_block_when_processing_errors(sdp) || !error) + error = scsi_ioctl_block_when_processing_errors(sdp, cmd, + (mode & FMODE_NDELAY) != 0); + if (error) goto out; /* |