summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--drivers/usb/gadget/f_mass_storage.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index d0806bae145b..9fa0c222da1c 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -347,6 +347,7 @@ struct fsg_operations {
/* Data shared by all the FSG instances. */
struct fsg_common {
struct usb_gadget *gadget;
+ struct usb_composite_dev *cdev;
struct fsg_dev *fsg, *new_fsg;
wait_queue_head_t fsg_wait;
@@ -2440,7 +2441,7 @@ static int fsg_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
struct fsg_dev *fsg = fsg_from_func(f);
fsg->common->new_fsg = fsg;
raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE);
- return 0;
+ return USB_GADGET_DELAYED_STATUS;
}
static void fsg_disable(struct usb_function *f)
@@ -2568,6 +2569,8 @@ static void handle_exception(struct fsg_common *common)
case FSG_STATE_CONFIG_CHANGE:
do_set_interface(common, common->new_fsg);
+ if (common->new_fsg)
+ usb_composite_setup_continue(common->cdev);
break;
case FSG_STATE_EXIT:
@@ -2734,6 +2737,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
common->gadget = gadget;
common->ep0 = gadget->ep0;
common->ep0req = cdev->req;
+ common->cdev = cdev;
/* Maybe allocate device-global string IDs, and patch descriptors */
if (fsg_strings[FSG_STRING_INTERFACE].id == 0) {