2 files changed, 16 insertions, 9 deletions

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 6986f3926244..efacee0404a0 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -29,6 +29,7 @@
 #include <linux/blkdev.h>
 #include <linux/mutex.h>
 #include <linux/scatterlist.h>
+#include <linux/string_helpers.h>
 
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
@@ -83,7 +84,7 @@ static void mmc_blk_put(struct mmc_blk_data *md)
 	mutex_lock(&open_lock);
 	md->usage--;
 	if (md->usage == 0) {
-		int devidx = md->disk->first_minor >> MMC_SHIFT;
+		int devidx = MINOR(disk_devt(md->disk)) >> MMC_SHIFT;
 		__clear_bit(devidx, dev_use);
 
 		put_disk(md->disk);
@@ -532,6 +533,8 @@ static int mmc_blk_probe(struct mmc_card *card)
 	struct mmc_blk_data *md;
 	int err;
 
+	char cap_str[10];
+
 	/*
 	 * Check that the card supports the command class(es) we need.
 	 */
@@ -546,10 +549,11 @@ static int mmc_blk_probe(struct mmc_card *card)
 	if (err)
 		goto out;
 
-	printk(KERN_INFO "%s: %s %s %lluKiB %s\n",
+	string_get_size(get_capacity(md->disk) << 9, STRING_UNITS_2,
+			cap_str, sizeof(cap_str));
+	printk(KERN_INFO "%s: %s %s %s %s\n",
 		md->disk->disk_name, mmc_card_id(card), mmc_card_name(card),
-		(unsigned long long)(get_capacity(md->disk) >> 1),
-		md->read_only ? "(ro)" : "");
+		cap_str, md->read_only ? "(ro)" : "");
 
 	mmc_set_drvdata(card, md);
 	add_disk(md->disk);
@@ -615,14 +619,19 @@ static struct mmc_driver mmc_driver = {
 
 static int __init mmc_blk_init(void)
 {
-	int res = -ENOMEM;
+	int res;
 
 	res = register_blkdev(MMC_BLOCK_MAJOR, "mmc");
 	if (res)
 		goto out;
 
-	return mmc_register_driver(&mmc_driver);
+	res = mmc_register_driver(&mmc_driver);
+	if (res)
+		goto out2;
 
+	return 0;
+ out2:
+	unregister_blkdev(MMC_BLOCK_MAJOR, "mmc");
  out:
 	return res;
 }
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index f26b01d811ae..b92b172074ee 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -1040,7 +1040,7 @@ static const struct mmc_test_case mmc_test_cases[] = {
 
 };
 
-static struct mutex mmc_test_lock;
+static DEFINE_MUTEX(mmc_test_lock);
 
 static void mmc_test_run(struct mmc_test_card *test, int testcase)
 {
@@ -1171,8 +1171,6 @@ static int mmc_test_probe(struct mmc_card *card)
 	if ((card->type != MMC_TYPE_MMC) && (card->type != MMC_TYPE_SD))
 		return -ENODEV;
 
-	mutex_init(&mmc_test_lock);
-
 	ret = device_create_file(&card->dev, &dev_attr_test);
 	if (ret)
 		return ret;