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-rw-r--r--arch/m32r/kernel/smp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
index 1b7598e..31cef20 100644
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -17,6 +17,7 @@
#include <linux/irq.h>
#include <linux/interrupt.h>
+#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/mm.h>
#include <linux/smp.h>
@@ -805,7 +806,7 @@ unsigned long send_IPI_mask_phys(cpumask_t physid_mask, int ipi_num,
if (mask & ~physids_coerce(phys_cpu_present_map))
BUG();
- if (ipi_num >= NR_IPIS)
+ if (ipi_num >= NR_IPIS || ipi_num < 0)
BUG();
mask <<= IPI_SHIFT;
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