diff mbox series

[5.4,033/102] mt7601u: fix bbp version check in mt7601u_wait_bbp_ready

Message ID 20200124092811.239592861@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Jan. 24, 2020, 9:30 a.m. UTC 
From: Lorenzo Bianconi <lorenzo@kernel.org>

commit 15e14f76f85f4f0eab3b8146e1cd3c58ce272823 upstream.

Fix bbp ready check in mt7601u_wait_bbp_ready. The issue is reported by
coverity with the following error:

Logical vs. bitwise operator
The expression's value does not depend on the operands; inadvertent use
of the wrong operator is a likely logic error.

Addresses-Coverity-ID: 1309441 ("Logical vs. bitwise operator")
Fixes: c869f77d6abb ("add mt7601u driver")
Acked-by: Jakub Kicinski <kubakici@wp.pl>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/net/wireless/mediatek/mt7601u/phy.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/drivers/net/wireless/mediatek/mt7601u/phy.c
+++ b/drivers/net/wireless/mediatek/mt7601u/phy.c
@@ -213,7 +213,7 @@  int mt7601u_wait_bbp_ready(struct mt7601
 
 	do {
 		val = mt7601u_bbp_rr(dev, MT_BBP_REG_VERSION);
-		if (val && ~val)
+		if (val && val != 0xff)
 			break;
 	} while (--i);