Dec 24 2008

Staging: comedi: Correct use of ! and & 

Author: Julia Lawall <julia@diku.dk>

0x20 has 0 as its rightmost bit and thus !inl(info->plx_regbase +
PLX_INTCSR) & 0x20 is always 0.  I assume that !(!inl(info->plx_regbase +
PLX_INTCSR) & 0x20) was intended.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// 
@@ expression E; constant C; @@
(
  !E & !C
|
- !E & C
+ !(E & C)
)
// 

Signed-off-by: Julia Lawall 
Signed-off-by: Greg Kroah-Hartman 



---
 drivers/staging/comedi/drivers/me4000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index b432aa7..cc29315 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -782,7 +782,7 @@ static int xilinx_download(comedi_device * dev)
 
 	/* Wait until /INIT pin is set */
 	udelay(20);
-	if (!inl(info->plx_regbase + PLX_INTCSR) & 0x20) {
+	if (!(inl(info->plx_regbase + PLX_INTCSR) & 0x20)) {
 		printk(KERN_ERR
 			"comedi%d: me4000: xilinx_download(): Can't init Xilinx\n",
 			dev->minor);

qlambert