From: Mikael Pettersson <mikpe@it.uu.se>
Date: Sun, 24 Sep 2006 00:05:31 +0000 (-0700)
Subject: USB: Fix alignment of buffer passed down to ->hub_control()
X-Git-Tag: firefly_0821_release~33250
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=54bee6e1b455573658972510a76119f279db32b7;p=firefly-linux-kernel-4.4.55.git

USB: Fix alignment of buffer passed down to ->hub_control()

Implementations assume the buffer is at least 4 byte aligned.

Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index e86f62957085..0d5cbf254e5e 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -345,7 +345,8 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 	struct usb_ctrlrequest *cmd;
  	u16		typeReq, wValue, wIndex, wLength;
 	u8		*ubuf = urb->transfer_buffer;
-	u8		tbuf [sizeof (struct usb_hub_descriptor)];
+	u8		tbuf [sizeof (struct usb_hub_descriptor)]
+		__attribute__((aligned(4)));
 	const u8	*bufp = tbuf;
 	int		len = 0;
 	int		patch_wakeup = 0;