diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index e3bf901b10aa..efb4c7742fe2 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -4187,6 +4187,14 @@ void __sdhci_read_caps(struct sdhci_host *host, const u16 *ver,
 }
 EXPORT_SYMBOL_GPL(__sdhci_read_caps);
 
+static void sdhci_unmap_bounce_buffer(void *data)
+{
+	struct sdhci_host *host = data;
+
+	dma_unmap_single(mmc_dev(host->mmc), host->bounce_addr,
+			 host->bounce_buffer_size, DMA_BIDIRECTIONAL);
+}
+
 static void sdhci_allocate_bounce_buffer(struct sdhci_host *host)
 {
 	struct mmc_host *mmc = host->mmc;
@@ -4247,6 +4255,14 @@ static void sdhci_allocate_bounce_buffer(struct sdhci_host *host)
 	}
 
 	host->bounce_buffer_size = bounce_size;
+	ret = devm_add_action_or_reset(mmc_dev(mmc),
+				       sdhci_unmap_bounce_buffer, host);
+	if (ret) {
+		devm_kfree(mmc_dev(mmc), host->bounce_buffer);
+		host->bounce_buffer = NULL;
+		host->bounce_buffer_size = 0;
+		return;
+	}
 
 out:
 	/* Lie about this since we're bouncing */