mmc/dwmmc: Using calloc instead malloc

To enhance the SDMMC DesignWare driver to use calloc instead of
malloc. This will avoid the incident that uninitialized members
of mmc structure are later used for NULL comparison.

Signed-off-by: Chin Liang See <[email protected]>
Cc: Rajeshwari Shinde <[email protected]>
Cc: Jaehoon Chung <[email protected]>
Cc: Mischa Jonker <[email protected]>
Cc: Alexey Brodkin <[email protected]>
Cc: Andy Fleming <[email protected]>
Cc: Pantelis Antoniou <[email protected]>
Acked-by: Pantelis Antoniou <[email protected]>

diff --git a/drivers/mmc/dw_mmc.c b/drivers/mmc/dw_mmc.c
old mode 100644 (file)
new mode 100755 (executable)
index 19d9b0b..82abe19
--- a/drivers/mmc/dw_mmc.c
+++ b/drivers/mmc/dw_mmc.c
@@ -336,9 +336,9 @@ int add_dwmci(struct dwmci_host *host, u32 max_clk, u32 min_clk)
        struct mmc *mmc;
        int err = 0;
 
-       mmc = malloc(sizeof(struct mmc));
+       mmc = calloc(sizeof(struct mmc), 1);
        if (!mmc) {
-               printf("mmc malloc fail!\n");
+               printf("mmc calloc fail!\n");
                return -1;
        }