[U-Boot] [PATCH v4 18/25] arm: imx: hab: Print HAB event log only after calling ROM

[Bryan O'Donoghue]

The current flow of authenticate_image() will print the HAB event log even
if we reject an element of the IVT header before ever calling into the ROM.
This can be confusing.

This patch changes the flow of the code so that the HAB event log is only
printed out if we have called into the ROM and received some sort of status
code.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue at linaro.org>
Suggested-by: Cc: Breno Matheus Lima <brenomatheus at gmail.com>
Cc: Stefano Babic <sbabic at denx.de>
Cc: Fabio Estevam <fabio.estevam at nxp.com>
Cc: Peng Fan <peng.fan at nxp.com>
Cc: Albert Aribaud <albert.u.boot at aribaud.net>
Cc: Sven Ebenfeld <sven.ebenfeld at gmail.com>
Cc: George McCollister <george.mccollister at gmail.com>
---
 arch/arm/mach-imx/hab.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-imx/hab.c b/arch/arm/mach-imx/hab.c
index 92d342b..d574f2e 100644
--- a/arch/arm/mach-imx/hab.c
+++ b/arch/arm/mach-imx/hab.c
@@ -478,14 +478,14 @@ int authenticate_image(uint32_t ddr_start, uint32_t image_size,
 
 	if (hab_rvt_entry() != HAB_SUCCESS) {
 		puts("hab entry function fail\n");
-		goto hab_caam_clock_disable;
+		goto hab_exit_failure_print_status;
 	}
 
 	status = hab_rvt_check_target(HAB_TGT_MEMORY, (void *)ddr_start, bytes);
 	if (status != HAB_SUCCESS) {
 		printf("HAB check target 0x%08x-0x%08x fail\n",
 		       ddr_start, ddr_start + bytes);
-		goto hab_caam_clock_disable;
+		goto hab_exit_failure_print_status;
 	}
 #ifdef DEBUG
 	printf("\nivt_offset = 0x%x, ivt addr = 0x%x\n", ivt_offset, ivt_addr);
@@ -558,12 +558,14 @@ int authenticate_image(uint32_t ddr_start, uint32_t image_size,
 		load_addr = 0;
 	}
 
-hab_caam_clock_disable:
-	hab_caam_clock_enable(0);
-
+hab_exit_failure_print_status:
 #if !defined(CONFIG_SPL_BUILD)
 	get_hab_status();
 #endif
+
+hab_caam_clock_disable:
+	hab_caam_clock_enable(0);
+
 	if (load_addr != 0)
 		result = 0;
 
-- 
2.7.4