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-rw-r--r--fs/fuse/iomode.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/fuse/iomode.c b/fs/fuse/iomode.c
index 98f1fd523dae63..c99e285f3183ef 100644
--- a/fs/fuse/iomode.c
+++ b/fs/fuse/iomode.c
@@ -90,7 +90,7 @@ int fuse_inode_uncached_io_start(struct fuse_inode *fi, struct fuse_backing *fb)
spin_lock(&fi->lock);
/* deny conflicting backing files on same fuse inode */
oldfb = fuse_inode_backing(fi);
- if (oldfb && oldfb != fb) {
+ if (fb && oldfb && oldfb != fb) {
err = -EBUSY;
goto unlock;
}
@@ -101,7 +101,7 @@ int fuse_inode_uncached_io_start(struct fuse_inode *fi, struct fuse_backing *fb)
fi->iocachectr--;
/* fuse inode holds a single refcount of backing file */
- if (!oldfb) {
+ if (fb && !oldfb) {
oldfb = fuse_inode_backing_set(fi, fb);
WARN_ON_ONCE(oldfb != NULL);
} else {