@@ -380,6 +380,8 @@ static int atmci_regs_show(struct seq_file *s, void *v)
 {
 	struct atmel_mci	*host = s->private;
 	u32			*buf;
+	int			ret;
+
 
 	buf = kmalloc(ATMCI_REGS_SIZE, GFP_KERNEL);
 	if (!buf)

@@ -391,7 +393,11 @@ static int atmci_regs_show(struct seq_file *s, void *v)
 	 * consistent.
 	 */
 	spin_lock_bh(&host->lock);
-	clk_enable(host->mck);
+	ret = clk_enable(host->mck);
+	if (ret) {
+		kfree(buf);
+		return ret;
+	}
 	memcpy_fromio(buf, host->regs, ATMCI_REGS_SIZE);
 	clk_disable(host->mck);
 	spin_unlock_bh(&host->lock);

@@ -2379,7 +2385,9 @@ static int __init atmci_probe(struct platform_device *pdev)
 	if (!host->regs)
 		goto err_ioremap;
 
-	clk_enable(host->mck);
+	ret = clk_prepare_enable(host->mck);
+	if (ret)
+		goto err_clk_prepare_enable;
 	atmci_writel(host, ATMCI_CR, ATMCI_CR_SWRST);
 	host->bus_hz = clk_get_rate(host->mck);
 	clk_disable(host->mck);

@@ -2463,6 +2471,8 @@ err_init_slot:
 		dma_release_channel(host->dma.chan);
 	free_irq(irq, host);
 err_request_irq:
+	clk_unprepare(host->mck);
+err_clk_prepare_enable:
 	iounmap(host->regs);
 err_ioremap:
 	clk_put(host->mck);

@@ -2491,7 +2501,7 @@ static int __exit atmci_remove(struct platform_device *pdev)
 	atmci_writel(host, ATMCI_IDR, ~0UL);
 	atmci_writel(host, ATMCI_CR, ATMCI_CR_MCIDIS);
 	atmci_readl(host, ATMCI_SR);
-	clk_disable(host->mck);
+	clk_disable_unprepare(host->mck);
 
 	if (host->dma.chan)
 		dma_release_channel(host->dma.chan);