1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 306a2b52125c..2b4334394076 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -585,7 +585,6 @@ static ssize_t ffs_epfile_io(struct file *file,
                              char __user *buf, size_t len, int read)
 {
         struct ffs_epfile *epfile = file->private_data;
-        struct usb_gadget *gadget = epfile->ffs->gadget;
         struct ffs_ep *ep;
         char *data = NULL;
         ssize_t ret, data_len;
@@ -622,6 +621,12 @@ static ssize_t ffs_epfile_io(struct file *file,
         /* Allocate & copy */
         if (!halt) {
                 /*
+                 * if we _do_ wait above, the epfile->ffs->gadget might be NULL
+                 * before the waiting completes, so do not assign to 'gadget' earlier
+                 */
+                struct usb_gadget *gadget = epfile->ffs->gadget;
+
+                /*
                  * Controller may require buffer size to be aligned to
                  * maxpacketsize of an out endpoint.
                  */