From e9f99fd016c06568ae7d359bc7c713f7f39fc736 Mon Sep 17 00:00:00 2001 From: "Gustavo A. R. Silva" Date: Fri, 5 Oct 2018 20:42:45 +0200 Subject: [PATCH] ath10k: htt_rx: fix signedness bug in ath10k_update_per_peer_tx_stats Currently, the error handling for the call to function ath10k_get_legacy_rate_idx() doesn't work because *rate_idx* is of type u8 (8 bits, unsigned), which makes it impossible for it to hold a value less than 0. Fix this by changing the type of variable *rate_idx* to s8 (8 bits, signed). Addresses-Coverity-ID: 1473914 ("Unsigned compared against 0") Fixes: c62f42cef59c ("ath10k: get the legacy rate index to update the txrate table") Signed-off-by: Gustavo A. R. Silva Signed-off-by: Kalle Valo --- drivers/net/wireless/ath/ath10k/htt_rx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index f2405258a6d39..edd0e74b2732b 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -2753,7 +2753,8 @@ ath10k_update_per_peer_tx_stats(struct ath10k *ar, struct ath10k_per_peer_tx_stats *peer_stats) { struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv; - u8 rate = 0, rate_idx = 0, sgi; + u8 rate = 0, sgi; + s8 rate_idx = 0; struct rate_info txrate; lockdep_assert_held(&ar->data_lock); -- 2.39.5