usb: fix undefined behavior caused by zero-length array

The use of zero-length array causes undefined behavior. Replace zero-length array with flexible-array member. Bug: 174330770 Test: build pass and boot to home Change-Id: I080ed1555d5b60075f6a86aa0ac15427529f7a1b Signed-off-by: Jimmy Hu <[email protected]> Signed-off-by: Puma Hsu <[email protected]>
InsideLabs-Inc · Apr 25, 2022 · 2af5957 · 2af5957
1 parent 743e8de
commit 2af5957
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/include/linux/usb.h b/include/linux/usb.h
@@ -1580,9 +1580,8 @@ struct urb {
 	int error_count;		/* (return) number of ISO errors */
 	void *context;			/* (in) context for completion */
 	usb_complete_t complete;	/* (in) completion routine */
-	struct usb_iso_packet_descriptor iso_frame_desc[0];
-					/* (in) ISO ONLY */
 	void *priv_data;                /* (in) additional private data */
+	struct usb_iso_packet_descriptor iso_frame_desc[]; /* (in) ISO ONLY */
 };
 
 /* ----------------------------------------------------------------------- */