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-rw-r--r--class/video/usbh_video.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/class/video/usbh_video.c b/class/video/usbh_video.c
index 8ecd252d..8e782e20 100644
--- a/class/video/usbh_video.c
+++ b/class/video/usbh_video.c
@@ -77,7 +77,7 @@ int usbh_video_get(struct usbh_video *video_class, uint8_t request, uint8_t intf
retry = 0;
while (1) {
ret = usbh_control_transfer(video_class->hport, setup, g_video_buf);
- if (ret > 0) {
+ if (ret >= len) {
break;
}
retry++;