diff --git a/fs/dax.c b/fs/dax.c
index 3380b43cb6bb..423fc1607dfa 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -1128,7 +1128,7 @@ static int dax_iomap_copy_around(loff_t pos, uint64_t length, size_t align_size,
 	/* zero the edges if srcmap is a HOLE or IOMAP_UNWRITTEN */
 	bool zero_edge = srcmap->flags & IOMAP_F_SHARED ||
 			 srcmap->type == IOMAP_UNWRITTEN;
-	void *saddr = 0;
+	void *saddr = NULL;
 	int ret = 0;
 
 	if (!zero_edge) {
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 20533266ade6..60456263a338 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -1114,7 +1114,7 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
 	loff_t offset = iocb->ki_pos;
 	const loff_t end = offset + count;
 	struct dio *dio;
-	struct dio_submit sdio = { 0, };
+	struct dio_submit sdio = { NULL, };
 	struct buffer_head map_bh = { 0, };
 	struct blk_plug plug;
 	unsigned long align = offset | iov_iter_alignment(iter);