diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index ab7521c04eb2..c729665107f5 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -3514,7 +3514,7 @@ fec_probe(struct platform_device *pdev)
 		goto failed_init;
 
 	for (i = 0; i < irq_cnt; i++) {
-		sprintf(irq_name, "int%d", i);
+		snprintf(irq_name, sizeof(irq_name), "int%d", i);
 		irq = platform_get_irq_byname(pdev, irq_name);
 		if (irq < 0)
 			irq = platform_get_irq(pdev, i);