#define NR_IRQS                        (MXC_IPU_IRQ_START + MX3_IPU_IRQS)
 
-extern void imx_irq_set_priority(unsigned char irq, unsigned char prio);
+extern int imx_irq_set_priority(unsigned char irq, unsigned char prio);
 
 /* all normal IRQs can be FIQs */
 #define FIQ_START      0
 
 #define IIM_PROD_REV_SH                3
 #define IIM_PROD_REV_LEN       5
 
-#ifdef CONFIG_MXC_IRQ_PRIOR
-void imx_irq_set_priority(unsigned char irq, unsigned char prio)
+int imx_irq_set_priority(unsigned char irq, unsigned char prio)
 {
+#ifdef CONFIG_MXC_IRQ_PRIOR
        unsigned int temp;
        unsigned int mask = 0x0F << irq % 8 * 4;
 
-       if (irq > 63)
-               return;
+       if (irq >= MXC_INTERNAL_IRQS)
+               return -EINVAL;;
 
        temp = __raw_readl(AVIC_NIPRIORITY(irq / 8));
        temp &= ~mask;
        temp |= prio & mask;
 
        __raw_writel(temp, AVIC_NIPRIORITY(irq / 8));
+
+       return 0;
+#else
+       return -ENOSYS;
+#endif
 }
 EXPORT_SYMBOL(imx_irq_set_priority);
-#endif
 
 #ifdef CONFIG_FIQ
 int mxc_set_irq_fiq(unsigned int irq, unsigned int type)