From 94926121692381247090b35ec68aed124260f05e Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Mon, 21 Sep 2015 15:33:52 +0200 Subject: [PATCH] net: brcm80211: fix range check Unsigned minus constant is still unsigned so checking its sign makes no sense. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda Signed-off-by: David S. Miller --- drivers/net/wireless/brcm80211/brcmsmac/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.c b/drivers/net/wireless/brcm80211/brcmsmac/main.c index 9728be0e704b..218cbc8bf3a7 100644 --- a/drivers/net/wireless/brcm80211/brcmsmac/main.c +++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c @@ -4585,7 +4585,7 @@ static int brcms_b_attach(struct brcms_c_info *wlc, struct bcma_device *core, wlc_hw->machwcap_backup = wlc_hw->machwcap; /* init tx fifo size */ - WARN_ON((wlc_hw->corerev - XMTFIFOTBL_STARTREV) < 0 || + WARN_ON(wlc_hw->corerev < XMTFIFOTBL_STARTREV || (wlc_hw->corerev - XMTFIFOTBL_STARTREV) > ARRAY_SIZE(xmtfifo_sz)); wlc_hw->xmtfifo_sz = -- 2.20.1