From: Dmitry Torokhov <dtor@vmware.com>
Date: Wed, 23 Feb 2011 22:38:20 +0000 (-0800)
Subject: USB: fix unsafe USB_SS_MAX_STREAMS() definition
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c9642374d0e969e8c17f4f31cd1a2bd111634227;p=openwrt%2Fstaging%2Fblogic.git

USB: fix unsafe USB_SS_MAX_STREAMS() definition

Macro arguments used in expressions need to be enclosed in parenthesis
to avoid unpleasant surprises.

Signed-off-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index ab461948b579..34316ba05f29 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -584,7 +584,7 @@ struct usb_ss_ep_comp_descriptor {
 
 #define USB_DT_SS_EP_COMP_SIZE		6
 /* Bits 4:0 of bmAttributes if this is a bulk endpoint */
-#define USB_SS_MAX_STREAMS(p)		(1 << (p & 0x1f))
+#define USB_SS_MAX_STREAMS(p)		(1 << ((p) & 0x1f))
 
 /*-------------------------------------------------------------------------*/