fix for clang-tidy null dereference error

JacobBarthelmeh · JacobBarthelmeh · commit ed4b87eb37e5 · 2024-02-01T14:26:13.000-07:00
diff --git a/wolfcrypt/src/asn.c b/wolfcrypt/src/asn.c
@@ -15400,7 +15400,9 @@ word32 SetLength(word32 length, byte* output)
 word32 SetLengthEx(word32 length, byte* output, byte isIndef)
 {
     if (isIndef) {
-        output[0] = ASN_INDEF_LENGTH;
+        if (output != NULL) {
+            output[0] = ASN_INDEF_LENGTH;
+        }
         return 1;
     }
     else {

Original file line number	Diff line number	Diff line change
`@@ -15400,7 +15400,9 @@ word32 SetLength(word32 length, byte* output)`
`15400`	`15400`	`word32 SetLengthEx(word32 length, byte* output, byte isIndef)`
`15401`	`15401`	`{`
`15402`	`15402`	`if (isIndef) {`
`15403`		`- output[0] = ASN_INDEF_LENGTH;`
	`15403`	`+ if (output != NULL) {`
	`15404`	`+ output[0] = ASN_INDEF_LENGTH;`
	`15405`	`+ }`
`15404`	`15406`	`return 1;`
`15405`	`15407`	`}`
`15406`	`15408`	`else {`