USB: fix create_pipe()
create_pipe() can give wrong result if an expression is passed as the 'endpoint'
argument -- due to missing parentheses.
Thanks to Martin Mueller for finding the bug and providing the patch.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
diff --git a/include/usb.h b/include/usb.h
index a1f09d4..bc4ccfe 100644
--- a/include/usb.h
+++ b/include/usb.h
@@ -259,7 +259,7 @@
*/
/* Create various pipes... */
#define create_pipe(dev,endpoint) \
- (((dev)->devnum << 8) | (endpoint << 15) | \
+ (((dev)->devnum << 8) | ((endpoint) << 15) | \
((dev)->speed << 26) | (dev)->maxpacketsize)
#define default_pipe(dev) ((dev)->speed << 26)