There will be no delay even when COMMAND_BUSY (defined 0x8000) is set:
0x8000 & (delay < 10000) will evaluate to 0 - when delay is 0.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 45f47c1..efb7444 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -2904,7 +2904,7 @@ EXPORT_SYMBOL(init_airo_card);
 
 static int waitbusy (struct airo_info *ai) {
 	int delay = 0;
-	while ((IN4500 (ai, COMMAND) & COMMAND_BUSY) & (delay < 10000)) {
+	while ((IN4500 (ai, COMMAND) & COMMAND_BUSY) && (delay < 10000)) {
 		udelay (10);
 		if ((++delay % 20) == 0)
 			OUT4500(ai, EVACK, EV_CLEARCOMMANDBUSY);


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原文链接: http://lkml.org/lkml/2008/5/13/374
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