diff options
| -rw-r--r-- | drivers/mmc/card/block.c | 16 |
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) |