[ARM] Ensure that dev->dma_mask is initialised for Acorn cards.

arch/arm/kernel/ecard.c

@@ -978,6 +978,8 @@ ecard_probe(int slot, card_type_t type)
 	strcpy(ec->dev.name, "fixme!");
 	ec->dev.parent = NULL;
 	ec->dev.bus    = &ecard_bus_type;
+	ec->dev.dma_mask = &ec->dma_mask;
+	ec->dma_mask = (u64)0xffffffff;
 
 	device_register(&ec->dev);
 

include/asm-arm/ecard.h

@@ -160,6 +160,7 @@ struct expansion_card {
 	const char		*card_desc;	/* Card description		*/
 	CONST unsigned int	podaddr;	/* Base Linux address for card	*/
 	CONST loader_t		loader;		/* loader program */
+	u64			dma_mask;
 };
 
 struct in_chunk_dir {