mmc: core: Fix use of uninitialized data in mmc_cmd_app.

mmc_cmd_app did not zero out mmc_command on stack.

Reported-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Andrei Warkentin <andreiw@motorola.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

diff --git a/drivers/mmc/core/sd_ops.c b/drivers/mmc/core/sd_ops.c
index 76af349c14b41e41c8e6de62878ee364c6a61232..71fdb07fd8dede2c81ad0a3e9f8411ffca82d246 100644 (file)
--- a/drivers/mmc/core/sd_ops.c
+++ b/drivers/mmc/core/sd_ops.c
@@ -29,6 +29,8 @@ static int mmc_app_cmd(struct mmc_host *host, struct mmc_card *card)
        BUG_ON(!host);
        BUG_ON(card && (card->host != host));
 
+       memset(&cmd, 0, sizeof(struct mmc_command));
+
        cmd.opcode = MMC_APP_CMD;
 
        if (card) {