Merge master.kernel.org:/pub/scm/linux/kernel/git/sfrench/cifs-2.6

[pandora-kernel.git] / drivers / scsi / ide-scsi.c

diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 1427a41..2b5b8a9 100644 (file)
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -110,6 +110,7 @@ typedef struct ide_scsi_obj {
 } idescsi_scsi_t;
 
 static DEFINE_MUTEX(idescsi_ref_mutex);
+static int idescsi_nocd;                       /* Set by module param to skip cd */
 
 #define ide_scsi_g(disk) \
        container_of((disk)->private_data, struct ide_scsi_obj, driver)
@@ -800,15 +801,10 @@ static int idescsi_ide_open(struct inode *inode, struct file *filp)
 {
        struct gendisk *disk = inode->i_bdev->bd_disk;
        struct ide_scsi_obj *scsi;
-       ide_drive_t *drive;
 
        if (!(scsi = ide_scsi_get(disk)))
                return -ENXIO;
 
-       drive = scsi->drive;
-
-       drive->usage++;
-
        return 0;
 }
 
@@ -816,9 +812,6 @@ static int idescsi_ide_release(struct inode *inode, struct file *filp)
 {
        struct gendisk *disk = inode->i_bdev->bd_disk;
        struct ide_scsi_obj *scsi = ide_scsi_g(disk);
-       ide_drive_t *drive = scsi->drive;
-
-       drive->usage--;
 
        ide_scsi_put(scsi);
 
@@ -1127,6 +1120,9 @@ static int ide_scsi_probe(ide_drive_t *drive)
                warned = 1;
        }
 
+       if (idescsi_nocd && drive->media == ide_cdrom)
+               return -ENODEV;
+
        if (!strstr("ide-scsi", drive->driver_req) ||
            !drive->present ||
            drive->media == ide_disk ||
@@ -1187,6 +1183,8 @@ static void __exit exit_idescsi_module(void)
        driver_unregister(&idescsi_driver.gen_driver);
 }
 
+module_param(idescsi_nocd, int, 0600);
+MODULE_PARM_DESC(idescsi_nocd, "Disable handling of CD-ROMs so they may be driven by ide-cd");
 module_init(init_idescsi_module);
 module_exit(exit_idescsi_module);
 MODULE_LICENSE("GPL");