1 files changed, 3 insertions, 0 deletions

diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index d8a3afe4ff72..0adfd64dfcee 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -32,6 +32,7 @@
 #include <linux/sched.h>
 #include <linux/inet.h>
 #include <linux/idr.h>
+#include <linux/slab.h>
 #include <net/9p/9p.h>
 #include <net/9p/client.h>
 
@@ -130,6 +131,8 @@ static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
         rdir = (struct p9_rdir *) fid->rdir;
 
         err = mutex_lock_interruptible(&rdir->mutex);
+        if (err)
+                return err;
         while (err == 0) {
                 if (rdir->tail == rdir->head) {
                         err = v9fs_file_readn(filp, rdir->buf, NULL,