diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index acecd13dcbd9ad6acc26f3cb64214738a1abb530..1b580eb3f78f1373cd85d1263250c60baf63c337 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -3308,7 +3308,9 @@ static ssize_t fsg_opts_num_buffers_store(struct config_item *item,
 	if (ret)
 		goto end;
 
-	fsg_common_set_num_buffers(opts->common, num);
+	ret = fsg_common_set_num_buffers(opts->common, num);
+	if (ret)
+		goto end;
 	ret = len;
 
 end: