Index: uspace/app/mkminix/mkminix.c
===================================================================
--- uspace/app/mkminix/mkminix.c	(revision bed03560cd8ad6b1cd1d76bbdc1777152dff2a53)
+++ uspace/app/mkminix/mkminix.c	(revision b4388044a683f37a1225c532c04a8b2342aa1773)
@@ -290,5 +290,5 @@
 	const long root_dblock = sb->first_data_zone;
 
-	root_block = (void *) malloc(sb->block_size);
+	root_block = malloc(sb->block_size);
 	memset(root_block, 0x00, sb->block_size);
 
@@ -366,5 +366,5 @@
 	const time_t sec = time(NULL);
 
-	ino_buf = (struct mfs_inode *) malloc(MFS_BLOCKSIZE);
+	ino_buf = malloc(MFS_BLOCKSIZE);
 
 	if (!ino_buf)
@@ -398,5 +398,5 @@
 	const time_t sec = time(NULL);
 
-	ino_buf = (struct mfs2_inode *) malloc(sb->block_size);
+	ino_buf = malloc(sb->block_size);
 
 	if (!ino_buf)
@@ -504,5 +504,5 @@
 	int rc;
 
-	sb = (struct mfs_superblock *) malloc(MFS_SUPERBLOCK_SIZE);;
+	sb = malloc(MFS_SUPERBLOCK_SIZE);;
 
 	if (!sb)
@@ -531,5 +531,5 @@
 	int rc;
 
-	sb = (struct mfs3_superblock *) malloc(MFS_SUPERBLOCK_SIZE);
+	sb = malloc(MFS_SUPERBLOCK_SIZE);
 
 	if (!sb)
@@ -562,6 +562,6 @@
 	int rc;
 
-	ibmap_buf = (uint32_t *) malloc(ibmap_nblocks * sb->block_size);
-	zbmap_buf = (uint32_t *) malloc(zbmap_nblocks * sb->block_size);
+	ibmap_buf = malloc(ibmap_nblocks * sb->block_size);
+	zbmap_buf = malloc(zbmap_nblocks * sb->block_size);
 
 	if (!ibmap_buf || !zbmap_buf)
Index: uspace/srv/fs/minixfs/mfs_inode.c
===================================================================
--- uspace/srv/fs/minixfs/mfs_inode.c	(revision bed03560cd8ad6b1cd1d76bbdc1777152dff2a53)
+++ uspace/srv/fs/minixfs/mfs_inode.c	(revision b4388044a683f37a1225c532c04a8b2342aa1773)
@@ -50,6 +50,6 @@
 	const size_t ino_size = sizeof(struct mfs_inode);
 
-	ino_i = (struct mfs_ino_info *) malloc(sizeof(struct mfs_ino_info));
-	ino = (struct mfs_inode *) malloc(ino_size);
+	ino_i = malloc(sizeof(*ino_i));
+	ino = malloc(ino_size);
 
 	if (!ino || !ino_i)
@@ -105,6 +105,6 @@
 	const size_t ino_size = sizeof(struct mfs2_inode);
 
-	ino = (struct mfs2_inode *) malloc(ino_size);
-	ino_i = (struct mfs_ino_info *) malloc(sizeof(struct mfs_ino_info));
+	ino = malloc(ino_size);
+	ino_i = malloc(sizeof(*ino_i));
 
 	if (!ino || !ino_i)
Index: uspace/srv/fs/minixfs/mfs_ops.c
===================================================================
--- uspace/srv/fs/minixfs/mfs_ops.c	(revision bed03560cd8ad6b1cd1d76bbdc1777152dff2a53)
+++ uspace/srv/fs/minixfs/mfs_ops.c	(revision b4388044a683f37a1225c532c04a8b2342aa1773)
@@ -118,5 +118,5 @@
 
 	/*Allocate space for generic MFS superblock*/
-	sbi = (struct mfs_sb_info *) malloc(sizeof(struct mfs_sb_info));
+	sbi = malloc(sizeof(*sbi));
 
 	if (!sbi) {
@@ -126,5 +126,5 @@
 
 	/*Allocate space for filesystem instance*/
-	instance = (struct mfs_instance *) malloc(sizeof(struct mfs_instance));
+	instance = malloc(sizeof(*instance));
 
 	if (!instance) {
@@ -133,5 +133,5 @@
 	}
 
-	sb = (struct mfs_superblock *) malloc(MFS_SUPERBLOCK_SIZE);
+	sb = malloc(MFS_SUPERBLOCK_SIZE);
 
 	if (!sb) {
@@ -334,5 +334,5 @@
 	const struct mfs_sb_info *sbi = inst->sbi;
 
-	node = (fs_node_t *) malloc(sizeof(fs_node_t));
+	node = malloc(sizeof(fs_node_t));
 	if (!node) {
 		rc = ENOMEM;
@@ -342,5 +342,5 @@
 	fs_node_initialize(node);
 
-	mnode = (struct mfs_node *) malloc(sizeof(struct mfs_node));
+	mnode = malloc(sizeof(*mnode));
 	if (!mnode) {
 		rc = ENOMEM;