From: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Date: Fri, 12 Jan 2018 12:40:15 +0000 (+0000)
Subject: arm: imx: hab: Make authenticate_image() return zero on open boards
X-Git-Tag: v2018.03-rc1~176^2~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4467ae6c28aa7eef84d5784f56234472a015d5e2;p=platform%2Fkernel%2Fu-boot.git

arm: imx: hab: Make authenticate_image() return zero on open boards

The BootROM will not successfully process a HAB image passed by u-boot
unless the board has been set into locked mode. Some of the existing usages
of authenticate_image() expect and rely on unlocked boards doing the
following

1. Not calling into the BootROM authenticate_image() callback
2. Returning a pass status for authenticate_image() calls anyway

A previous patch removed the necessity to call into imx_hab_is_enabled()
twice. This patch ensures the reliance on authenticate_image() returning
zero is maintained.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Suggested-by: Breno Matheus Lima <brenomatheus@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Sven Ebenfeld <sven.ebenfeld@gmail.com>
Cc: George McCollister <george.mccollister@gmail.com>
Tested-by: Breno Lima <breno.lima@nxp.com>
---

diff --git a/arch/arm/mach-imx/hab.c b/arch/arm/mach-imx/hab.c
index d917ac3..3b19a7e 100644
--- a/arch/arm/mach-imx/hab.c
+++ b/arch/arm/mach-imx/hab.c
@@ -458,7 +458,7 @@ int imx_hab_authenticate_image(uint32_t ddr_start, uint32_t image_size,
 
 	if (!imx_hab_is_enabled()) {
 		puts("hab fuse not enabled\n");
-		return result;
+		return 0;
 	}
 
 	printf("\nAuthenticate image from DDR location 0x%x...\n",