From: Michael Brown <mcb30@ipxe.org>
Date: Fri, 4 Jun 2021 13:16:44 +0000 (+0100)
Subject: [ath5k] Avoid returning uninitialised data on EEPROM read errors
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=065dce8d5950938a7250a93c2630c4b53d2e8293;p=thirdparty%2Fipxe.git

[ath5k] Avoid returning uninitialised data on EEPROM read errors

Originally-implemented-by: Bernhard M. Wiedemann <bwiedemann@suse.de>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
---

diff --git a/src/drivers/net/ath/ath5k/ath5k_eeprom.c b/src/drivers/net/ath/ath5k/ath5k_eeprom.c
index 12519bc59..46f33d1e8 100644
--- a/src/drivers/net/ath/ath5k/ath5k_eeprom.c
+++ b/src/drivers/net/ath/ath5k/ath5k_eeprom.c
@@ -39,6 +39,9 @@ static int ath5k_hw_eeprom_read(struct ath5k_hw *ah, u32 offset, u16 *data)
 {
 	u32 status, timeout;
 
+	/* Avoid returning uninitialised data on error */
+	*data = 0xffff;
+
 	/*
 	 * Initialize EEPROM access
 	 */