1 files changed, 27 insertions, 14 deletions

diff --git a/arch/sh/drivers/dma/dma-api.c b/arch/sh/drivers/dma/dma-api.c
index e062067edd2..c0eec08d8f9 100644
--- a/arch/sh/drivers/dma/dma-api.c
+++ b/arch/sh/drivers/dma/dma-api.c
@@ -13,9 +13,12 @@
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/list.h>
 #include <linux/platform_device.h>
 #include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
 #include <asm/dma.h>
 
 DEFINE_SPINLOCK(dma_spin_lock);
@@ -30,8 +33,8 @@ struct dma_info *get_dma_info(unsigned int chan)
 	 * the channel is.
 	 */
 	list_for_each_entry(info, &registered_dmac_list, list) {
-		if ((chan <  info->first_channel_nr) ||
-		    (chan >= info->first_channel_nr + info->nr_channels))
+		if ((chan <  info->first_vchannel_nr) ||
+		    (chan >= info->first_vchannel_nr + info->nr_channels))
 			continue;
 
 		return info;
@@ -81,7 +84,7 @@ struct dma_channel *get_dma_channel(unsigned int chan)
 
 	for (i = 0; i < info->nr_channels; i++) {
 		channel = &info->channels[i];
-		if (channel->chan == chan)
+		if (channel->vchan == chan)
 			return channel;
 	}
 
@@ -115,7 +118,7 @@ static int search_cap(const char **haystack, const char *needle)
 /**
  * request_dma_bycap - Allocate a DMA channel based on its capabilities
  * @dmac: List of DMA controllers to search
- * @caps: List of capabilites
+ * @caps: List of capabilities
  *
  * Search all channels of all DMA controllers to find a channel which
  * matches the requested capabilities. The result is the channel
@@ -306,11 +309,9 @@ int dma_extend(unsigned int chan, unsigned long op, void *param)
 }
 EXPORT_SYMBOL(dma_extend);
 
-static int dma_read_proc(char *buf, char **start, off_t off,
-			 int len, int *eof, void *data)
+static int dma_proc_show(struct seq_file *m, void *v)
 {
-	struct dma_info *info;
-	char *p = buf;
+	struct dma_info *info = v;
 
 	if (list_empty(&registered_dmac_list))
 		return 0;
@@ -330,14 +331,26 @@ static int dma_read_proc(char *buf, char **start, off_t off,
 			if (!(channel->flags & DMA_CONFIGURED))
 				continue;
 
-			p += sprintf(p, "%2d: %14s    %s\n", i,
-				     info->name, channel->dev_id);
+			seq_printf(m, "%2d: %14s    %s\n", i,
+				   info->name, channel->dev_id);
 		}
 	}
 
-	return p - buf;
+	return 0;
 }
 
+static int dma_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, dma_proc_show, NULL);
+}
+
+static const struct file_operations dma_proc_fops = {
+	.open		= dma_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 int register_dmac(struct dma_info *info)
 {
 	unsigned int total_channels, i;
@@ -349,7 +362,7 @@ int register_dmac(struct dma_info *info)
 
 	BUG_ON((info->flags & DMAC_CHANNELS_CONFIGURED) && !info->channels);
 
-	info->pdev = platform_device_register_simple((char *)info->name, -1,
+	info->pdev = platform_device_register_simple(info->name, -1,
 						     NULL, 0);
 	if (IS_ERR(info->pdev))
 		return PTR_ERR(info->pdev);
@@ -368,6 +381,7 @@ int register_dmac(struct dma_info *info)
 	}
 
 	total_channels = get_nr_channels();
+	info->first_vchannel_nr = total_channels;
 	for (i = 0; i < info->nr_channels; i++) {
 		struct dma_channel *chan = &info->channels[i];
 
@@ -409,8 +423,7 @@ EXPORT_SYMBOL(unregister_dmac);
 static int __init dma_api_init(void)
 {
 	printk(KERN_NOTICE "DMA: Registering DMA API.\n");
-	create_proc_read_entry("dma", 0, 0, dma_read_proc, 0);
-	return 0;
+	return proc_create("dma", 0, NULL, &dma_proc_fops) ? 0 : -ENOMEM;
 }
 subsys_initcall(dma_api_init);