diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c index 2741566ee4f25849e64d8c61ce9064a534b56647..98e39f91723a52ec7cf607dc60f50035e66a569f 100644 --- a/drivers/usb/core/buffer.c +++ b/drivers/usb/core/buffer.c @@ -122,6 +122,9 @@ void *hcd_buffer_alloc( struct usb_hcd *hcd = bus_to_hcd(bus); int i; + if (size == 0) + return NULL; + /* some USB hosts just use PIO */ if (!IS_ENABLED(CONFIG_HAS_DMA) || (!bus->controller->dma_mask &&