MdeModulePkg: Add NULL pointer check for RegularExpressionDxe.

Refine code by adding NULL pointer check to avoid potential NULL pointer dereferenced.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Qiu Shumin <shumin.qiu@intel.com>
Reviewed-by: Samer El-Haj-Mahmoud <elhaj@hpe.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19271 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Qiu Shumin
2015-12-15 08:40:55 +00:00
committed by shenshushi
parent 00d1c2a35e
commit b0c2b79738
7 changed files with 50 additions and 4 deletions

View File

@@ -308,6 +308,10 @@ onig_error_code_to_str(s, code, va_alist)
default:
q = onig_error_code_to_format(code);
if (q == NULL) {
len = 0;
break;
}
len = onigenc_str_bytelen_null(ONIG_ENCODING_ASCII, q);
xmemcpy(s, q, len);
s[len] = '\0';