diff --git a/fs/buffer.c b/fs/buffer.c
index 681b249039eb..661251d0fd47 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -2329,7 +2329,7 @@ int generic_cont_expand_simple(struct inode *inode, loff_t size)
 {
 	struct address_space *mapping = inode->i_mapping;
 	struct page *page;
-	void *fsdata;
+	void *fsdata = NULL;
 	int err;
 
 	err = inode_newsize_ok(inode, size);
@@ -2356,7 +2356,7 @@ static int cont_expand_zero(struct file *file, struct address_space *mapping,
 	struct inode *inode = mapping->host;
 	unsigned int blocksize = i_blocksize(inode);
 	struct page *page;
-	void *fsdata;
+	void *fsdata = NULL;
 	pgoff_t index, curidx;
 	loff_t curpos;
 	unsigned zerofrom, offset, len;
diff --git a/fs/namei.c b/fs/namei.c
index 0953281430b1..a1b17411baff 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -4802,7 +4802,7 @@ int __page_symlink(struct inode *inode, const char *symname, int len, int nofs)
 {
 	struct address_space *mapping = inode->i_mapping;
 	struct page *page;
-	void *fsdata;
+	void *fsdata = NULL;
 	int err;
 	unsigned int flags = AOP_FLAG_UNINTERRUPTIBLE;
 	if (nofs)
diff --git a/mm/filemap.c b/mm/filemap.c
index 05af91f495f5..d2ae935600cb 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2719,7 +2719,7 @@ ssize_t generic_perform_write(struct file *file,
 		unsigned long offset;	/* Offset into pagecache page */
 		unsigned long bytes;	/* Bytes to write to page */
 		size_t copied;		/* Bytes copied from user */
-		void *fsdata;
+		void *fsdata = NULL;
 
 		offset = (pos & (PAGE_SIZE - 1));
 		bytes = min_t(unsigned long, PAGE_SIZE - offset,