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-rw-r--r--arch/arm/common/gic.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c
index fea1bd7249b6..e6388dcd8cfa 100644
--- a/arch/arm/common/gic.c
+++ b/arch/arm/common/gic.c
@@ -146,9 +146,15 @@ static int gic_set_cpu(unsigned int irq, const struct cpumask *mask_val)
146 unsigned int shift = (irq % 4) * 8; 146 unsigned int shift = (irq % 4) * 8;
147 unsigned int cpu = cpumask_first(mask_val); 147 unsigned int cpu = cpumask_first(mask_val);
148 u32 val; 148 u32 val;
149 struct irq_desc *desc;
149 150
150 spin_lock(&irq_controller_lock); 151 spin_lock(&irq_controller_lock);
151 irq_desc[irq].node = cpu; 152 desc = irq_to_desc(irq);
153 if (desc == NULL) {
154 spin_unlock(&irq_controller_lock);
155 return -EINVAL;
156 }
157 desc->node = cpu;
152 val = readl(reg) & ~(0xff << shift); 158 val = readl(reg) & ~(0xff << shift);
153 val |= 1 << (cpu + shift); 159 val |= 1 << (cpu + shift);
154 writel(val, reg); 160 writel(val, reg);