From: Timothy Manning <codedraftsman@gmail.com>
Date: Thu, 24 Jun 2021 02:39:00 +0000 (+1200)
Subject: Fixed segfault in yaffs_guts
X-Git-Url: https://yaffs.net/gitweb/?p=yaffs2.git;a=commitdiff_plain;h=794059997ab24f0ca4cab7587325da4bd9ddb108

Fixed segfault in yaffs_guts

Remounting a device would cause a segfault because the
device's temp_buffer would not be reinitialised. Resulting
in a null pointer being called as a function, creating the segfault.

Signed-off-by: Timothy Manning <codedraftsman@gmail.com>
---

diff --git a/yaffs_guts.c b/yaffs_guts.c
index a2b4cdf..4621dfa 100644
--- a/yaffs_guts.c
+++ b/yaffs_guts.c
@@ -163,6 +163,8 @@ u8 *yaffs_get_temp_buffer(struct yaffs_dev * dev)
 
 }
 
+/* Frees all the temp_buffer objects in the yaffs_dev instance
+*/
 void yaffs_release_temp_buffer(struct yaffs_dev *dev, u8 *buffer)
 {
 	int i;
@@ -4826,6 +4828,7 @@ void yaffs_deinitialise(struct yaffs_dev *dev)
 		kfree(dev->checkpt_block_list);
 		dev->checkpt_block_list = NULL;
 
+		dev->ll_init = 0;
 		dev->is_mounted = 0;
 
 		yaffs_deinit_nand(dev);