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 <[email protected]>
Suggested-by: Breno Matheus Lima <[email protected]>
Cc: Stefano Babic <[email protected]>
Cc: Fabio Estevam <[email protected]>
Cc: Peng Fan <[email protected]>
Cc: Albert Aribaud <[email protected]>
Cc: Sven Ebenfeld <[email protected]>
Cc: George McCollister <[email protected]>
Tested-by: Breno Lima <[email protected]>

diff --git a/arch/arm/mach-imx/hab.c b/arch/arm/mach-imx/hab.c
index d917ac3af9a6a69697b9abe884416f907a6e4274..3b19a7e57365bc3a7dc7196d0675888b8f962a1c 100644 (file)
--- 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",