Change in coreboot[master]: amdfwtool: Make sure the level is an legal value

[Bao Zheng (Code Review)]

Attention is currently required from: Zheng Bao.
Hello Zheng Bao,

I'd like you to do a code review. Please visit

https://review.coreboot.org/c/coreboot/+/62487

to review the following change.

Change subject: amdfwtool: Make sure the level is an legal value
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amdfwtool: Make sure the level is an legal value

Change-Id: Ie058d2ad48acbf9c3f219c472632cddceddfb825
Signed-off-by: Zheng Bao 
---
M util/amdfwtool/data_parse.c
1 file changed, 4 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/87/62487/1

diff --git a/util/amdfwtool/data_parse.c b/util/amdfwtool/data_parse.c
index a6b73ee..b6d40ff 100644
--- a/util/amdfwtool/data_parse.c
+++ b/util/amdfwtool/data_parse.c
@@ -534,6 +534,10 @@
    					ch_lvl = oneline[match[3].rm_so + 2];
    			}

+				assert (ch_lvl == 'x' || ch_lvl == 'X' ||
+					ch_lvl == 'b' || ch_lvl == 'B' ||
+					ch_lvl == '1' || ch_lvl == '2');
+
    			if (find_register_fw_filename_psp_dir(
    					&(oneline[match[1].rm_so]),
    					path_filename, ch_lvl, cb_config) == 0) {