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-rw-r--r--arch/sparc/mm/io-unit.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index 007062022967..4ccda77d08d6 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -22,6 +22,7 @@
22#include <asm/cacheflush.h> 22#include <asm/cacheflush.h>
23#include <asm/tlbflush.h> 23#include <asm/tlbflush.h>
24#include <asm/dma.h> 24#include <asm/dma.h>
25#include <asm/oplib.h>
25 26
26/* #define IOUNIT_DEBUG */ 27/* #define IOUNIT_DEBUG */
27#ifdef IOUNIT_DEBUG 28#ifdef IOUNIT_DEBUG
@@ -42,6 +43,10 @@ iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus)
42 struct resource r; 43 struct resource r;
43 44
44 iounit = kzalloc(sizeof(struct iounit_struct), GFP_ATOMIC); 45 iounit = kzalloc(sizeof(struct iounit_struct), GFP_ATOMIC);
46 if (!iounit) {
47 prom_printf("SUN4D: Cannot alloc iounit, halting.\n");
48 prom_halt();
49 }
45 50
46 iounit->limit[0] = IOUNIT_BMAP1_START; 51 iounit->limit[0] = IOUNIT_BMAP1_START;
47 iounit->limit[1] = IOUNIT_BMAP2_START; 52 iounit->limit[1] = IOUNIT_BMAP2_START;