use more appropriate alternatives to malloc()

Use calloc to request cleared memory instead.
Kernel and libc conspire to make this more efficient.

Also, replace one malloc() + strcpy() with strdup().

Signed-off-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>

1 files changed, 1 insertions, 2 deletions

diff --git a/extras/volume_id/lib/volume_id.c b/extras/volume_id/lib/volume_id.c
index 791be43515..8f22509ca6 100644
--- a/extras/volume_id/lib/volume_id.c
+++ b/extras/volume_id/lib/volume_id.c
@@ -483,10 +483,9 @@ struct volume_id *volume_id_open_fd(int fd)
 {
 	struct volume_id *id;
 
-	id = malloc(sizeof(struct volume_id));
+	id = calloc(1, sizeof(struct volume_id));
 	if (id == NULL)
 		return NULL;
-	memset(id, 0x00, sizeof(struct volume_id));
 
 	id->fd = fd;