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mtd: Allow dynamic major/minor number for mtd block devices

PATCH NAK Richard Purdie 1 participant 1 message Mar 2, 2007 Memory technology devices (MTD)

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Richard Purdie

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PATCH 5/9 mtd: Allow dynamic major/minor number for mtd block devices

Allow mtd block devices to have a dynamically allocated major/minor numbers if tr->major == 0.

Signed-off-by Richard Purdie <[email protected]>
---
 drivers/mtd/mtd_blkdevs.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
drivers/mtd/mtd_blkdevs.c +4 -1
Index: linux/drivers/mtd/mtd_blkdevs.c
===================================================================
@@ -380,13 +380,16 @@ int register_mtd_blktrans(struct mtd_blk
 	mutex_lock(&mtd_table_mutex);
 
 	ret = register_blkdev(tr->major, tr->name);
-	if (ret) {
+	if (ret < 0) {
 		printk(KERN_WARNING "Unable to register %s block device on major %d: %d\n",
 		       tr->name, tr->major, ret);
 		kfree(tr->blkcore_priv);
 		mutex_unlock(&mtd_table_mutex);
 		return ret;
 	}
+	if (!tr->major)
+		tr->major = ret;
+
 	spin_lock_init(&tr->blkcore_priv->queue_lock);
 	init_completion(&tr->blkcore_priv->thread_dead);
 	init_waitqueue_head(&tr->blkcore_priv->thread_wq);