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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 <a.hajda@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrzej Hajda 2015-09-21 15:33:52 +02:00 committed by David S. Miller
parent 23c2412d62
commit 9492612169
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/brcm80211/brcmsmac/main.c
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@ -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 =