1 files changed, 12 insertions, 4 deletions

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 98ffc41eaf2c..adc205c49fbf 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -147,7 +147,8 @@ struct mmc_blk_request {
 static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
 {
         int err;
-        __be32 blocks;
+        u32 result;
+        __be32 *blocks;
 
         struct mmc_request mrq;
         struct mmc_command cmd;
@@ -199,14 +200,21 @@ static u32 mmc_sd_num_wr_blocks(struct mmc_card *card)
         mrq.cmd = &cmd;
         mrq.data = &data;
 
-        sg_init_one(&sg, &blocks, 4);
+        blocks = kmalloc(4, GFP_KERNEL);
+        if (!blocks)
+                return (u32)-1;
+
+        sg_init_one(&sg, blocks, 4);
 
         mmc_wait_for_req(card->host, &mrq);
 
+        result = ntohl(*blocks);
+        kfree(blocks);
+
         if (cmd.error || data.error)
-                return (u32)-1;
+                result = (u32)-1;
 
-        return ntohl(blocks);
+        return result;
 }
 
 static u32 get_card_status(struct mmc_card *card, struct request *req)