diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 3b5742e..9eef3a0 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -454,6 +454,12 @@
 
 static inline void mmc_signal_sdio_irq(struct mmc_host *host)
 {
+	if (!host->sdio_irqs) {
+		pr_err("%s: SDIO interrupt recieved without function driver claiming an irq\n",
+				mmc_hostname(host));
+		return;
+	}
+
 	host->ops->enable_sdio_irq(host, 0);
 	host->sdio_irq_pending = true;
 	wake_up_process(host->sdio_irq_thread);