clk_get() returns a struct clk cookie to the driver and some platforms
may return NULL if they only support a single clock.  clk_get() has only
failed if it returns a ERR_PTR() encoded pointer.

Cc: linux-mmc@vger.kernel.org
Signed-off-by: Jamie Iles <ja...@jamieiles.com>
---
 drivers/mmc/host/jz4740_mmc.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index b3a0ab0..74218ad 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -14,6 +14,7 @@
  */
 
 #include <linux/mmc/host.h>
+#include <linux/err.h>
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
@@ -827,8 +828,8 @@ static int __devinit jz4740_mmc_probe(struct 
platform_device* pdev)
        }
 
        host->clk = clk_get(&pdev->dev, "mmc");
-       if (!host->clk) {
-               ret = -ENOENT;
+       if (IS_ERR(host->clk)) {
+               ret = PTR_ERR(host->clk);
                dev_err(&pdev->dev, "Failed to get mmc clock\n");
                goto err_free_host;
        }
-- 
1.7.3.4

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