[PATCH] [MIPS] Fix ids in Alchemy db dma device table (Repost in hopefully correct format)

[Wolfgang Ocker <weo@xxxxxxxxxxxx>]

From: Wolfgang Ocker <weo@xxxxxxxxxxxx>

0 is a valid device id (DSCR_CMD0_UART0_TX), so we can't use it to mark
an empty entry in the device table. Use ~0 instead and search for id ~0
when looking for a free entry.

Signed-off-by: Wolfgang Ocker <weo@xxxxxxxxxxxx>
---

diff -up linux-2.6.24/arch/mips/au1000/common/dbdma.c.devtab_fix linux-2.6.24/arch/mips/au1000/common/dbdma.c
--- linux-2.6.24/arch/mips/au1000/common/dbdma.c.devtab_fix	2008-01-24 23:58:37.000000000 +0100
+++ linux-2.6.24/arch/mips/au1000/common/dbdma.c	2008-02-06 11:51:16.000000000 +0100
@@ -161,22 +161,22 @@ static dbdev_tab_t dbdev_tab[] = {
 	{ DSCR_CMD0_ALWAYS, DEV_FLAGS_ANYUSE, 0, 0, 0x00000000, 0, 0 },
 
 	/* Provide 16 user definable device types */
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
-	{ 0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
+	{ ~0, 0, 0, 0, 0, 0, 0 },
 };
 
 #define DBDEV_TAB_SIZE (sizeof(dbdev_tab) / sizeof(dbdev_tab_t))
@@ -209,7 +209,7 @@ au1xxx_ddma_add_device(dbdev_tab_t *dev)
 	dbdev_tab_t *p=NULL;
 	static u16 new_id=0x1000;
 
-	p = find_dbdev_id(0);
+	p = find_dbdev_id(~0);
 	if ( NULL != p )
 	{
 		memcpy(p, dev, sizeof(dbdev_tab_t));