drivers/mmc/core/host.c: kmalloc + memset conversion to kzalloc

 drivers/mmc/core/host.c | 3509 -> 3457 (-52 bytes)
 drivers/mmc/core/host.o | 92400 -> 92136 (-264 bytes)

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 6a7e298..2c7ce8f 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -58,12 +58,10 @@
 {
 	struct mmc_host *host;
 
-	host = kmalloc(sizeof(struct mmc_host) + extra, GFP_KERNEL);
+	host = kzalloc(sizeof(struct mmc_host) + extra, GFP_KERNEL);
 	if (!host)
 		return NULL;
 
-	memset(host, 0, sizeof(struct mmc_host) + extra);
-
 	host->parent = dev;
 	host->class_dev.parent = dev;
 	host->class_dev.class = &mmc_host_class;