mmc: rename dev_to_mmc_card() to mmc_dev_to_card()

Global symbols should use their subsystem name in a prefixed fashion.

Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index 82d39bd..b992725 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -1935,7 +1935,7 @@
 static ssize_t mmc_test_store(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
-	struct mmc_card *card = dev_to_mmc_card(dev);
+	struct mmc_card *card = mmc_dev_to_card(dev);
 	struct mmc_test_card *test;
 	int testcase;