[U-Boot] [PATCH] misc: Call calloc() not malloc() to ensure buffer is zeroed

[Tom Rini]

- mpc512x_fec.c: 'fec' was not being memset while dev was, just call
  calloc() instead for both.  'bd' was being memset afterwards but given
  that it's an awkward looking call, just calloc() it directly.
- bzlib.c: Some fields to 'bzf' are being set to NULL later but for
  clarity calloc() the structure.
- string.c: We rely on malloc() having zeroed the buffer here so use
  calloc() instead.

Signed-off-by: Tom Rini <trini at ti.com>
---
 drivers/net/mpc512x_fec.c |    8 +++-----
 lib/bzip2/bzlib.c         |    4 ++--
 lib/string.c              |    2 +-
 3 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/net/mpc512x_fec.c b/drivers/net/mpc512x_fec.c
index 427e0b8..bee67d33 100644
--- a/drivers/net/mpc512x_fec.c
+++ b/drivers/net/mpc512x_fec.c
@@ -616,9 +616,8 @@ int mpc512x_fec_initialize (bd_t * bis)
 	struct eth_device *dev;
 	void * bd;
 
-	fec = (mpc512x_fec_priv *) malloc (sizeof(*fec));
-	dev = (struct eth_device *) malloc (sizeof(*dev));
-	memset (dev, 0, sizeof *dev);
+	fec = (mpc512x_fec_priv *) cmalloc (sizeof(*fec));
+	dev = (struct eth_device *) cmalloc (sizeof(*dev));
 
 	fec->eth = &im->fec;
 
@@ -650,9 +649,8 @@ int mpc512x_fec_initialize (bd_t * bis)
 	 * Malloc space for BDs  (must be quad word-aligned)
 	 * this pointer is lost, so cannot be freed
 	 */
-	bd = malloc (sizeof(mpc512x_buff_descs) + 0x1f);
+	bd = cmalloc (sizeof(mpc512x_buff_descs) + 0x1f);
 	fec->bdBase = (mpc512x_buff_descs*)((u32)bd & 0xfffffff0);
-	memset ((void *) bd, 0x00, sizeof(mpc512x_buff_descs) + 0x1f);
 
 	/*
 	 * Set interrupt mask register
diff --git a/lib/bzip2/bzlib.c b/lib/bzip2/bzlib.c
index 9262e40..1305808 100644
--- a/lib/bzip2/bzlib.c
+++ b/lib/bzip2/bzlib.c
@@ -963,7 +963,7 @@ BZFILE* BZ_API(BZ2_bzWriteOpen)
    if (ferror(f))
       { BZ_SETERR(BZ_IO_ERROR); return NULL; };
 
-   bzf = malloc ( sizeof(bzFile) );
+   bzf = cmalloc ( sizeof(bzFile) );
    if (bzf == NULL)
       { BZ_SETERR(BZ_MEM_ERROR); return NULL; };
 
@@ -1135,7 +1135,7 @@ BZFILE* BZ_API(BZ2_bzReadOpen)
    if (ferror(f))
       { BZ_SETERR(BZ_IO_ERROR); return NULL; };
 
-   bzf = malloc ( sizeof(bzFile) );
+   bzf = cmalloc ( sizeof(bzFile) );
    if (bzf == NULL)
       { BZ_SETERR(BZ_MEM_ERROR); return NULL; };
 
diff --git a/lib/string.c b/lib/string.c
index 87c9a40..f496dbe 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -284,7 +284,7 @@ char * strdup(const char *s)
 	char *new;
 
 	if ((s == NULL)	||
-	    ((new = malloc (strlen(s) + 1)) == NULL) ) {
+	    ((new = cmalloc (strlen(s) + 1)) == NULL) ) {
 		return NULL;
 	}
 
-- 
1.7.9.5