linux-kernel - [PATCH 5.10 387/717] iwlwifi: dbg-tlv: fix old length in is_trig_data

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Message-Id: <20201228125039.546474151@linuxfoundation.org>
Date:   Mon, 28 Dec 2020 13:46:25 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Daniel Gabay <daniel.gabay@...el.com>,
        Johannes Berg <johannes.berg@...el.com>,
        Luca Coelho <luciano.coelho@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.10 387/717] iwlwifi: dbg-tlv: fix old length in is_trig_data_contained()

From: Johannes Berg <johannes.berg@...el.com>

[ Upstream commit 58a1c9f9a9b6b9092ae10b84f6b571a06596e296 ]

There's a bug in the lengths - the 'old length' needs to be calculated
using the 'old' pointer, of course, likely a copy/paste mistake. Fix
this.

Reported-by: Daniel Gabay <daniel.gabay@...el.com>
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Fixes: cf29c5b66b9f ("iwlwifi: dbg_ini: implement time point handling")
Signed-off-by: Luca Coelho <luciano.coelho@...el.com>
Link: https://lore.kernel.org/r/iwlwifi.20201209231352.c0105ddffa74.I1ddb243053ff763c91b663748b6a593ecc3b5634@changeid
Signed-off-by: Luca Coelho <luciano.coelho@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
index 51ce93d21ffe5..8fa1c22fd96db 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
@@ -808,7 +808,7 @@ static bool is_trig_data_contained(struct iwl_ucode_tlv *new,
 	struct iwl_fw_ini_trigger_tlv *old_trig = (void *)old->data;
 	__le32 *new_data = new_trig->data, *old_data = old_trig->data;
 	u32 new_dwords_num = iwl_tlv_array_len(new, new_trig, data);
-	u32 old_dwords_num = iwl_tlv_array_len(new, new_trig, data);
+	u32 old_dwords_num = iwl_tlv_array_len(old, old_trig, data);
 	int i, j;
 
 	for (i = 0; i < new_dwords_num; i++) {
-- 
2.27.0