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common: fit-sig: Fix error message in fit_config_verify_sig()

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In fit_config_verify_sig(), when no 'signature*' subnode exists in
the configuration node, the fdt_for_each_subnode() loop is a no-op.
Therefore, no error flags are set, and 'err_,sg' is not populated
with an error string. This is incorrect behavior.

Populate err_msg to indicate that no 'signature' is found, before
entering the loop. The first call to fit_image_verify_sig() will
override clear err_msg, or set it to a more specific message.

Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Alexandru Gagniuc 2021-01-11 08:46:58 -06:00 committed by Tom Rini
parent b7cfe32e18
commit 76c78a5481
1 changed files with 1 additions and 1 deletions
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2
common/image-fit-sig.c
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@ -360,7 +360,7 @@ static int fit_config_verify_sig(const void *fit, int conf_noffset,
const void *sig_blob, int sig_offset)
{
int noffset;
char *err_msg = "";
char *err_msg = "No 'signature' subnode found";
int verified = 0;
int ret;