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tools: kwboot: Fix checking image header version

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Function image_version() returns unsigned value, so it can never be
negative. Explicitly check for two supported image versions: v0 and v1.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Pali Rohár 2021-07-23 11:14:22 +02:00 committed by Stefan Roese
parent 825a2ca023
commit 5029d7bf34
1 changed files with 1 additions and 1 deletions
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2
tools/kwboot.c
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@ -634,7 +634,7 @@ kwboot_img_patch_hdr(void *img, size_t size)
}
image_ver = image_version(img);
if (image_ver < 0) {
if (image_ver != 0 && image_ver != 1) {
fprintf(stderr, "Invalid image header version\n");
errno = EINVAL;
goto out;