commit e58c5de8f59d124907c993ea3126c69493b7eec7
author Julia Lawall <Julia.Lawall@lip6.fr> Tue Jun 12 10:17:25 2012 -0400
committer David S. Miller <davem@davemloft.net> Tue Jun 12 15:51:41 2012 -0700
tree 9b4a4673cb7700431b8ded39304d9bf6bfba3aff
parent 027253c138a12b075e724f94b6cc43fd7071c14f

drivers/ide/ide-cs.c: adjust suspicious bit operation

IO_DATA_PATH_WIDTH_8 is 0, so a bit-and with it is always false.  The
value IO_DATA_PATH_WIDTH covers the bits of the IO_DATA_PATH constants, so
first pick those bits and then make the test using !=.

This problem was found using Coccinelle (http://coccinelle.lip6.fr/).

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/ide/ide-cs.c

diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c
index 28e344e..f1e922e 100644
--- a/drivers/ide/ide-cs.c
+++ b/drivers/ide/ide-cs.c
@@ -167,7 +167,8 @@
 {
 	int *is_kme = priv_data;
 
-	if (!(pdev->resource[0]->flags & IO_DATA_PATH_WIDTH_8)) {
+	if ((pdev->resource[0]->flags & IO_DATA_PATH_WIDTH)
+	    != IO_DATA_PATH_WIDTH_8) {
 		pdev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH;
 		pdev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO;
 	}