drivers/mtd: Use kzalloc

Use kzalloc rather than the combination of kmalloc and memset.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,size,flags;
statement S;
@@

-x = kmalloc(size,flags);
+x = kzalloc(size,flags);
 if (x == NULL) S
-memset(x, 0, size);
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

5 files changed, 5 insertions, 10 deletions

diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/mtd_pagetest.c
index 921a85df9196..6bc1b8276c62 100644
--- a/drivers/mtd/tests/mtd_pagetest.c
+++ b/drivers/mtd/tests/mtd_pagetest.c
@@ -480,12 +480,11 @@ static int scan_for_bad_eraseblocks(void)
 {
         int i, bad = 0;
 
-        bbt = kmalloc(ebcnt, GFP_KERNEL);
+        bbt = kzalloc(ebcnt, GFP_KERNEL);
         if (!bbt) {
                 printk(PRINT_PREF "error: cannot allocate memory\n");
                 return -ENOMEM;
         }
-        memset(bbt, 0 , ebcnt);
 
         printk(PRINT_PREF "scanning for bad eraseblocks\n");
         for (i = 0; i < ebcnt; ++i) {
diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c
index 7107fccbc7de..afe71aa15c4b 100644
--- a/drivers/mtd/tests/mtd_readtest.c
+++ b/drivers/mtd/tests/mtd_readtest.c
@@ -141,12 +141,11 @@ static int scan_for_bad_eraseblocks(void)
 {
         int i, bad = 0;
 
-        bbt = kmalloc(ebcnt, GFP_KERNEL);
+        bbt = kzalloc(ebcnt, GFP_KERNEL);
         if (!bbt) {
                 printk(PRINT_PREF "error: cannot allocate memory\n");
                 return -ENOMEM;
         }
-        memset(bbt, 0 , ebcnt);
 
         /* NOR flash does not implement block_isbad */
         if (mtd->block_isbad == NULL)
diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c
index 56ca62bb96bf..161feeb7b8b9 100644
--- a/drivers/mtd/tests/mtd_speedtest.c
+++ b/drivers/mtd/tests/mtd_speedtest.c
@@ -295,12 +295,11 @@ static int scan_for_bad_eraseblocks(void)
 {
         int i, bad = 0;
 
-        bbt = kmalloc(ebcnt, GFP_KERNEL);
+        bbt = kzalloc(ebcnt, GFP_KERNEL);
         if (!bbt) {
                 printk(PRINT_PREF "error: cannot allocate memory\n");
                 return -ENOMEM;
         }
-        memset(bbt, 0 , ebcnt);
 
         /* NOR flash does not implement block_isbad */
         if (mtd->block_isbad == NULL)
diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/mtd_stresstest.c
index 3854afec56d0..531625fc9259 100644
--- a/drivers/mtd/tests/mtd_stresstest.c
+++ b/drivers/mtd/tests/mtd_stresstest.c
@@ -221,12 +221,11 @@ static int scan_for_bad_eraseblocks(void)
 {
         int i, bad = 0;
 
-        bbt = kmalloc(ebcnt, GFP_KERNEL);
+        bbt = kzalloc(ebcnt, GFP_KERNEL);
         if (!bbt) {
                 printk(PRINT_PREF "error: cannot allocate memory\n");
                 return -ENOMEM;
         }
-        memset(bbt, 0 , ebcnt);
 
         /* NOR flash does not implement block_isbad */
         if (mtd->block_isbad == NULL)
diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c
index 700237a3d120..11204e8aab5f 100644
--- a/drivers/mtd/tests/mtd_subpagetest.c
+++ b/drivers/mtd/tests/mtd_subpagetest.c
@@ -354,12 +354,11 @@ static int scan_for_bad_eraseblocks(void)
 {
         int i, bad = 0;
 
-        bbt = kmalloc(ebcnt, GFP_KERNEL);
+        bbt = kzalloc(ebcnt, GFP_KERNEL);
         if (!bbt) {
                 printk(PRINT_PREF "error: cannot allocate memory\n");
                 return -ENOMEM;
         }
-        memset(bbt, 0 , ebcnt);
 
         printk(PRINT_PREF "scanning for bad eraseblocks\n");
         for (i = 0; i < ebcnt; ++i) {