From: Eric Biggers <ebiggers3@gmail.com>
Date: Sat, 24 Nov 2012 17:58:39 +0000 (-0600)
Subject: Fix NULL pointer dereference if no progress function supplied
X-Git-Tag: v1.2.1~71
X-Git-Url: https://wimlib.net/git/?p=wimlib;a=commitdiff_plain;h=404cb3ab1194e80049443d1414c70648752f323d

Fix NULL pointer dereference if no progress function supplied
---

diff --git a/src/extract.c b/src/extract.c
index c42adac8..bb99b247 100644
--- a/src/extract.c
+++ b/src/extract.c
@@ -549,8 +549,9 @@ static int apply_stream_list(struct list_head *stream_list,
 				ret = ops->apply_dentry(dentry, args);
 				if (ret != 0)
 					goto out;
-				if (args->progress.extract.completed_bytes >= next_progress
-				    && args->progress.extract.total_bytes != 0)
+				if (progress_func &&
+				    args->progress.extract.completed_bytes >= next_progress &&
+				    args->progress.extract.total_bytes != 0)
 				{
 					progress_func(WIMLIB_PROGRESS_MSG_EXTRACT_STREAMS,
 						      &args->progress);