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authorChristoph Hellwig <hch@lst.de>2014-10-11 16:25:31 +0200
committerChristoph Hellwig <hch@lst.de>2014-11-12 11:16:11 +0100
commit906d15fbd23c1267addab361063c1c8119992215 (patch)
tree419ba148925c3651fe9337af24a932097e2c3d8a /drivers/scsi/sd.c
parent176aa9d6ee2db582e7e856dbe1983004a82869b4 (diff)
downloadlinux-906d15fbd23c1267addab361063c1c8119992215.tar.bz2
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.c6
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;
/*