[SPARC]: Check kzalloc() return value in SUN4D irq/iommu init.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index b8bd53ab29c5..cf1b8baa57ea 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -546,6 +546,10 @@ void __init sun4d_init_sbi_irq(void)
         for_each_sbus(sbus)
                 nsbi++;
         sbus_actions = kzalloc (nsbi * 8 * 4 * sizeof(struct sbus_action), GFP_ATOMIC);
+        if (!sbus_actions) {
+                prom_printf("SUN4D: Cannot allocate sbus_actions, halting.\n");
+                prom_halt();
+        }
         for_each_sbus(sbus) {
 #ifdef CONFIG_SMP       
                 extern unsigned char boot_cpu_id;