kbuild: check return value of asprintf()

Check return value of asprintf() in docsect() and exit if error occurs. This removes following warning: HOSTCC scripts/basic/docproc scripts/basic/docproc.c: In function ‘docsect’: scripts/basic/docproc.c:336: warning: ignoring return value of ‘asprintf’, declared with attribute warn_unused_result Signed-off-by: Namhyung Kim <[email protected]> Acked-by: Randy Dunlap <[email protected]> Signed-off-by: Michal Marek <[email protected]>
vieko · Oct 27, 2010 · d0f95c7 · d0f95c7
1 parent b74b953
commit d0f95c7
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/scripts/basic/docproc.c b/scripts/basic/docproc.c
@@ -333,7 +333,10 @@ static void docsect(char *filename, char *line)
 		if (*s == '\n')
 			*s = '\0';
 
-	asprintf(&s, "DOC: %s", line);
+	if (asprintf(&s, "DOC: %s", line) < 0) {
+		perror("asprintf");
+		exit(1);
+	}
 	consume_symbol(s);
 	free(s);