[SPARC64]: Implement atomic backoff.

[linux-2.6-omap-h63xx.git] / drivers / scsi / osst.c

diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index a967fadb7439a90be85775551c2ce4fea93bbc54..331b789937c4e0a700e4d1406f8e6a708e9a3e03 100644 (file)
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -87,6 +87,7 @@ MODULE_AUTHOR("Willem Riede");
 MODULE_DESCRIPTION("OnStream {DI-|FW-|SC-|USB}{30|50} Tape Driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS_CHARDEV_MAJOR(OSST_MAJOR);
+MODULE_ALIAS_SCSI_DEVICE(TYPE_TAPE);
 
 module_param(max_dev, int, 0444);
 MODULE_PARM_DESC(max_dev, "Maximum number of OnStream Tape Drives to attach (4)");
@@ -3297,7 +3298,7 @@ static ssize_t osst_write(struct file * filp, const char __user * buf, size_t co
        char                * name = tape_name(STp);
 
 
-       if (down_interruptible(&STp->lock))
+       if (mutex_lock_interruptible(&STp->lock))
                return (-ERESTARTSYS);
 
        /*
@@ -3599,7 +3600,7 @@ if (SRpnt) printk(KERN_ERR "%s:A: Not supposed to have SRpnt at line %d\n", name
 out:
        if (SRpnt != NULL) osst_release_request(SRpnt);
 
-       up(&STp->lock);
+       mutex_unlock(&STp->lock);
 
        return retval;
 }
@@ -3618,7 +3619,7 @@ static ssize_t osst_read(struct file * filp, char __user * buf, size_t count, lo
        char                * name  = tape_name(STp);
 
 
-       if (down_interruptible(&STp->lock))
+       if (mutex_lock_interruptible(&STp->lock))
                return (-ERESTARTSYS);
 
        /*
@@ -3784,7 +3785,7 @@ static ssize_t osst_read(struct file * filp, char __user * buf, size_t count, lo
 out:
        if (SRpnt != NULL) osst_release_request(SRpnt);
 
-       up(&STp->lock);
+       mutex_unlock(&STp->lock);
 
        return retval;
 }
@@ -4851,7 +4852,7 @@ static int osst_ioctl(struct inode * inode,struct file * file,
        char                * name  = tape_name(STp);
        void        __user  * p     = (void __user *)arg;
 
-       if (down_interruptible(&STp->lock))
+       if (mutex_lock_interruptible(&STp->lock))
                return -ERESTARTSYS;
 
 #if DEBUG
@@ -5162,14 +5163,14 @@ static int osst_ioctl(struct inode * inode,struct file * file,
        }
        if (SRpnt) osst_release_request(SRpnt);
 
-       up(&STp->lock);
+       mutex_unlock(&STp->lock);
 
        return scsi_ioctl(STp->device, cmd_in, p);
 
 out:
        if (SRpnt) osst_release_request(SRpnt);
 
-       up(&STp->lock);
+       mutex_unlock(&STp->lock);
 
        return retval;
 }
@@ -5777,13 +5778,12 @@ static int osst_probe(struct device *dev)
        dev_num = i;
 
        /* allocate a struct osst_tape for this device */
-       tpnt = kmalloc(sizeof(struct osst_tape), GFP_ATOMIC);
-       if (tpnt == NULL) {
+       tpnt = kzalloc(sizeof(struct osst_tape), GFP_ATOMIC);
+       if (!tpnt) {
                write_unlock(&os_scsi_tapes_lock);
                printk(KERN_ERR "osst :E: Can't allocate device descriptor, device not attached.\n");
                goto out_put_disk;
        }
-       memset(tpnt, 0, sizeof(struct osst_tape));
 
        /* allocate a buffer for this device */
        i = SDp->host->sg_tablesize;
@@ -5865,7 +5865,7 @@ static int osst_probe(struct device *dev)
        tpnt->modes[2].defined = 1;
        tpnt->density_changed = tpnt->compression_changed = tpnt->blksize_changed = 0;
 
-       init_MUTEX(&tpnt->lock);
+       mutex_init(&tpnt->lock);
        osst_nr_dev++;
        write_unlock(&os_scsi_tapes_lock);