[PATCH 2/3] common/spl: handle properly images with bad checksum

[Mikhail Kshevetskiy]

load_simple_fit() returns -EPERM for the images with broken signatures.
Unfortunately this may conflict with image loaging selection on the base
of boot phase. See commit 873112db9ce68c38984ff25808dde726f8dd5573
("spl: Support selecting images based on phase in simple FIT").

Thus loading of

	configurations {
		uboot {
			description = "u-boot";
			firmware = "atf";
			loadables = "atf", "tee", "uboot";
		};
	};

with damaged "tee" image may finish without errors. This may results in
board bricking. This should not happen.

The simplest way to resolve an issue is returning the different error
code for the cases of broken signature.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy at iopsys.eu>
---
 common/spl/spl_fit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
index ab277bb2baa..783bb84bdb5 100644
--- a/common/spl/spl_fit.c
+++ b/common/spl/spl_fit.c
@@ -322,7 +322,7 @@ static int load_simple_fit(struct spl_load_info *info, ulong fit_offset,
 		       fit_get_name(fit, node, NULL));
 		if (!fit_image_verify_with_data(fit, node, gd_fdt_blob(), src,
 						length))
-			return -EPERM;
+			return -EACCES;
 		puts("OK\n");
 	}
 
-- 
2.47.2