X-Git-Url: https://repo.jachan.dev/linux.git/blobdiff_plain/f0fb0dd0a715bd29caf9c55cf4a2a52a14a8fd61..f72035fad84c9b51a45fd8afc8024f3df0ba8848:/drivers/usb/core/buffer.c

diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
index 2741566ee4f2..98e39f91723a 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 &&