ext4: use sizeof(*ptr)

Replace the specification of data structures by pointer dereferences
as the parameter for the operator "sizeof" to make the corresponding size
determination a bit safer according to the Linux coding style convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>

diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index e8b3650..b04e882 100644 (file)
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -411,7 +411,7 @@ static struct dir_private_info *ext4_htree_create_dir_info(struct file *filp,
 {
        struct dir_private_info *p;
 
-       p = kzalloc(sizeof(struct dir_private_info), GFP_KERNEL);
+       p = kzalloc(sizeof(*p), GFP_KERNEL);
        if (!p)
                return NULL;
        p->curr_hash = pos2maj_hash(filp, pos);

diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index eb98356..77cdce1 100644 (file)
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -367,7 +367,7 @@ skip:
                goto failed;
        }
 
-       mmpd_data = kmalloc(sizeof(struct mmpd_data), GFP_KERNEL);
+       mmpd_data = kmalloc(sizeof(*mmpd_data), GFP_KERNEL);
        if (!mmpd_data) {
                ext4_warning(sb, "not enough memory for mmpd_data");
                goto failed;