From: Dan Carpenter <error27@gmail.com>
Date: Mon, 6 Feb 2023 16:15:48 +0300
Subject: wifi: ath5k: fix an off by one check in ath5k_eeprom_read_freq_list()
Git-commit: 4c856ee12df85aabd437c3836ed9f68d94268358
Patch-mainline: v6.4-rc1
References: git-fixes

This loop checks that i < max at the start of loop but then it does
i++ which could put it past the end of the array.  It's harmless to
check again and prevent a potential out of bounds.

Fixes: 1048643ea94d ("ath5k: Clean up eeprom parsing and add missing calibration data")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/Y+D9hPQrHfWBJhXz@kili
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 drivers/net/wireless/ath/ath5k/eeprom.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/wireless/ath/ath5k/eeprom.c
+++ b/drivers/net/wireless/ath/ath5k/eeprom.c
@@ -529,7 +529,7 @@ ath5k_eeprom_read_freq_list(struct ath5k
 		ee->ee_n_piers[mode]++;
 
 		freq2 = (val >> 8) & 0xff;
-		if (!freq2)
+		if (!freq2 || i >= max)
 			break;
 
 		pc[i++].freq = ath5k_eeprom_bin2freq(ee,