From b2c6831dbf569b90c8873392834cdf697555beae Mon Sep 17 00:00:00 2001 From: Samuel Mendoza-Jonas Date: Wed, 1 Jun 2016 16:39:18 +1000 Subject: [PATCH 1/1] discover/platform-powerpc: Return bootdev error correctly In one case get_ipmi_bootdev_ipmi() can return 0 on an error, which leads to bootdev being treated as a valid bootdev despite being uninitialised. If the planets line up correctly and bootdev is less than or equal to IPMI_BOOTDEV_SETUP, Petitboot will incorrectly apply an IPMI override. Update the error return value in get_ipmi_bootdev_ipmi(), and properly initialise bootdev. Signed-off-by: Samuel Mendoza-Jonas --- discover/platform-powerpc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/discover/platform-powerpc.c b/discover/platform-powerpc.c index 1961304..1f8d27d 100644 --- a/discover/platform-powerpc.c +++ b/discover/platform-powerpc.c @@ -956,7 +956,7 @@ static int get_ipmi_bootdev_ipmi(struct platform_powerpc *platform, /* check for valid flags */ if (!(resp[3] & 0x80)) { pb_debug("platform: boot flags are invalid, ignoring\n"); - return 0; + return -1; } *persistent = resp[3] & 0x40; @@ -1230,7 +1230,7 @@ static int load_config(struct platform *p, struct config *config) if (platform->get_ipmi_bootdev) { bool bootdev_persistent; - uint8_t bootdev; + uint8_t bootdev = IPMI_BOOTDEV_INVALID; rc = platform->get_ipmi_bootdev(platform, &bootdev, &bootdev_persistent); if (!rc && ipmi_bootdev_is_valid(bootdev)) { -- 2.39.2