diff --git a/fs/jfs/jfs_dtree.c b/fs/jfs/jfs_dtree.c
index 93db6eec4465..87025d832758 100644
--- a/fs/jfs/jfs_dtree.c
+++ b/fs/jfs/jfs_dtree.c
@@ -2083,7 +2083,7 @@ int dtDelete(tid_t tid,
 	struct metapage *mp, *imp;
 	dtpage_t *p;
 	int index;
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	struct dt_lock *dtlck;
 	struct tlock *tlck;
 	struct lv *lv;
@@ -2716,7 +2716,7 @@ int jfs_readdir(struct file *file, struct dir_context *ctx)
 	dtpage_t *p;
 	int index;
 	s8 *stbl;
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	int i, next;
 	struct ldtentry *d;
 	struct dtslot *t;
@@ -4237,7 +4237,7 @@ int dtModify(tid_t tid, struct inode *ip,
 	struct metapage *mp;
 	dtpage_t *p;
 	int index;
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	struct tlock *tlck;
 	struct dt_lock *dtlck;
 	struct lv *lv;
diff --git a/fs/jfs/jfs_xtree.c b/fs/jfs/jfs_xtree.c
index 5ee618d17e77..dd0e542a4978 100644
--- a/fs/jfs/jfs_xtree.c
+++ b/fs/jfs/jfs_xtree.c
@@ -123,7 +123,7 @@ int xtLookup(struct inode *ip, s64 lstart,
 	     s64 llen, int *pflag, s64 * paddr, s32 * plen, int no_check)
 {
 	int rc = 0;
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	int cmp;
 	s64 bn;
 	struct metapage *mp;
@@ -520,7 +520,7 @@ int xtInsert(tid_t tid,		/* transaction id */
 	xtpage_t *p;		/* base B+-tree index page */
 	s64 bn;
 	int index, nextindex;
-	struct btstack btstack;	/* traverse stack */
+	struct btstack btstack = {0};	/* traverse stack */
 	struct xtsplit split;	/* split information */
 	xad_t *xad;
 	int cmp;
@@ -1344,7 +1344,7 @@ int xtExtend(tid_t tid,		/* transaction id */
 	xtpage_t *p;		/* base B+-tree index page */
 	s64 bn;
 	int index, nextindex, len;
-	struct btstack btstack;	/* traverse stack */
+	struct btstack btstack = {0};	/* traverse stack */
 	struct xtsplit split;	/* split information */
 	xad_t *xad;
 	s64 xaddr;
@@ -1503,7 +1503,7 @@ int xtUpdate(tid_t tid, struct inode *ip, xad_t * nxad)
 	xtpage_t *p;		/* base B+-tree index page */
 	s64 bn;
 	int index0, index, newindex, nextindex;
-	struct btstack btstack;	/* traverse stack */
+	struct btstack btstack = {0};	/* traverse stack */
 	struct xtsplit split;	/* split information */
 	xad_t *xad, *lxad, *rxad;
 	int xflag;
@@ -1949,7 +1949,7 @@ int xtAppend(tid_t tid,		/* transaction id */
 	xtpage_t *p;		/* base B+-tree index page */
 	s64 bn, xaddr;
 	int index, nextindex;
-	struct btstack btstack;	/* traverse stack */
+	struct btstack btstack = {0};	/* traverse stack */
 	struct xtsplit split;	/* split information */
 	xad_t *xad;
 	int cmp;
@@ -2196,7 +2196,7 @@ s64 xtTruncate(tid_t tid, struct inode *ip, s64 newsize, int flag)
 	xad_t *xad;
 	s64 xoff, xaddr;
 	int xlen, len, freexlen;
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	struct btframe *parent;
 	struct tblock *tblk = NULL;
 	struct tlock *tlck = NULL;
@@ -2744,7 +2744,7 @@ s64 xtTruncate(tid_t tid, struct inode *ip, s64 newsize, int flag)
 s64 xtTruncate_pmap(tid_t tid, struct inode *ip, s64 committed_size)
 {
 	s64 bn;
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	int cmp;
 	int index;
 	int locked_leaves = 0;
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 65a218eba8fa..d04c752823ea 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -67,7 +67,7 @@ static int jfs_create(struct mnt_idmap *idmap, struct inode *dip,
 	struct inode *ip = NULL;	/* child directory inode */
 	ino_t ino;
 	struct component_name dname;	/* child directory name */
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	struct inode *iplist[2];
 	struct tblock *tblk;
 
@@ -200,7 +200,7 @@ static struct dentry *jfs_mkdir(struct mnt_idmap *idmap, struct inode *dip,
 	struct inode *ip = NULL;	/* child directory inode */
 	ino_t ino;
 	struct component_name dname;	/* child directory name */
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	struct inode *iplist[2];
 	struct tblock *tblk;
 
@@ -791,7 +791,7 @@ static int jfs_link(struct dentry *old_dentry,
 	struct inode *ip = d_inode(old_dentry);
 	ino_t ino;
 	struct component_name dname;
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	struct inode *iplist[2];
 
 	jfs_info("jfs_link: %pd %pd", old_dentry, dentry);
@@ -883,7 +883,7 @@ static int jfs_symlink(struct mnt_idmap *idmap, struct inode *dip,
 	ino_t ino = 0;
 	struct component_name dname;
 	u32 ssize;		/* source pathname size */
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	struct inode *ip;
 	s64 xlen = 0;
 	int bmask = 0, xsize;
@@ -1069,7 +1069,7 @@ static int jfs_rename(struct mnt_idmap *idmap, struct inode *old_dir,
 		      struct dentry *old_dentry, struct inode *new_dir,
 		      struct dentry *new_dentry, unsigned int flags)
 {
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	ino_t ino;
 	struct component_name new_dname;
 	struct inode *new_ip;
@@ -1356,7 +1356,7 @@ static int jfs_mknod(struct mnt_idmap *idmap, struct inode *dir,
 		     struct dentry *dentry, umode_t mode, dev_t rdev)
 {
 	struct jfs_inode_info *jfs_ip;
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	struct component_name dname;
 	ino_t ino;
 	struct inode *ip;
@@ -1448,7 +1448,7 @@ static int jfs_mknod(struct mnt_idmap *idmap, struct inode *dir,
 
 static struct dentry *jfs_lookup(struct inode *dip, struct dentry *dentry, unsigned int flags)
 {
-	struct btstack btstack;
+	struct btstack btstack = {0};
 	ino_t inum;
 	struct inode *ip;
 	struct component_name key;