From: Michael Gernoth <michael@gernoth.net>
Date: Fri, 9 Feb 2018 10:10:31 +0000 (+0100)
Subject: firmware: fix firmware extraction
X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/rsbs2/commitdiff_plain/5bece6bf8c66ade0960290b6fe75623da7968e09?ds=sidebyside

firmware: fix firmware extraction
---

diff --git a/src/filesystem.c b/src/filesystem.c
index da3cf76..f0465a8 100644
--- a/src/filesystem.c
+++ b/src/filesystem.c
@@ -163,11 +163,19 @@ void list_files(uint8_t *fw, int32_t len)
 void mkdir_p(char *dir)
 {
 	char *parent;
+	char *tmpdir;
 
 	if ((dir == NULL) || (!strcmp(dir, ".")))
 		return;
 
-	parent = strdup(dirname(dir));
+	tmpdir = strdup(dir);
+	if (tmpdir == NULL) {
+		perror("strdup");
+		exit(1);
+	}
+
+	parent = strdup(dirname(tmpdir));
+	free(tmpdir);
 	if (parent == NULL) {
 		perror("strdup");
 		exit(1);