---

yaml --- r: 213625 b: refs/heads/master c: 8e04d80 h: refs/heads/master i: 213623: 4f9dc1a v: v3
git-mirror · Oct 22, 2010 · 044d24e · 044d24e
1 parent a467317
commit 044d24e
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Showing 3 changed files with 9 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 319feaabb6c7ccd90da6e3207563c265da7d21ae
+refs/heads/master: 8e04d8056c1ea0e0aab730994b74756f0526cda8
diff --git a/trunk/drivers/scsi/sr.c b/trunk/drivers/scsi/sr.c
@@ -862,10 +862,16 @@ static void get_capabilities(struct scsi_cd *cd)
 static int sr_packet(struct cdrom_device_info *cdi,
 		struct packet_command *cgc)
 {
+	struct scsi_cd *cd = cdi->handle;
+	struct scsi_device *sdev = cd->device;
+
+	if (cgc->cmd[0] == GPCMD_READ_DISC_INFO && sdev->no_read_disc_info)
+		return -EDRIVE_CANT_DO_THIS;
+
 	if (cgc->timeout <= 0)
 		cgc->timeout = IOCTL_TIMEOUT;
 
-	sr_do_ioctl(cdi->handle, cgc);
+	sr_do_ioctl(cd, cgc);
 
 	return cgc->stat;
 }

diff --git a/trunk/include/scsi/scsi_device.h b/trunk/include/scsi/scsi_device.h
@@ -148,6 +148,7 @@ struct scsi_device {
 	unsigned retry_hwerror:1;	/* Retry HARDWARE_ERROR */
 	unsigned last_sector_bug:1;	/* do not use multisector accesses on
 					   SD_LAST_BUGGY_SECTORS */
+	unsigned no_read_disc_info:1;	/* Avoid READ_DISC_INFO cmds */
 	unsigned is_visible:1;	/* is the device visible in sysfs */
 
 	DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */