[PATCH 2/4] mmc: sandbox: Initialize backing buffer

[Sean Anderson <seanga2@gmail.com>]

Private data is initialized to all zeros by DM. Malloc does not do this.
Initialize it. This fixes partition detection logic from trying to detect
partitions in uninitialized memory.

Fixes: 0bf61aced2 ("sandbox: mmc: Support a backing file")
Signed-off-by: Sean Anderson <seanga2@gmail.com>
---

 drivers/mmc/sandbox_mmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/sandbox_mmc.c b/drivers/mmc/sandbox_mmc.c
index 35159451e1..60a6be0add 100644
--- a/drivers/mmc/sandbox_mmc.c
+++ b/drivers/mmc/sandbox_mmc.c
@@ -178,7 +178,7 @@ static int sandbox_mmc_probe(struct udevice *dev)
 		priv->csize = 0;
 		priv->size = (priv->csize + 1) * SIZE_MULTIPLE; /* 1 MiB */
 
-		priv->buf = malloc(priv->size);
+		priv->buf = calloc(1, priv->size);
 		if (!priv->buf) {
 			log_err("%s: Not enough memory (%x bytes)\n",
 				dev->name, priv->size);
-- 
2.35.1