From: Dave Kleikamp <shaggy@austin.ibm.com>
Date: Mon, 1 Aug 2005 21:54:26 +0000 (-0500)
Subject: JFS: Check for invalid inodes in jfs_delete_inode
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=30db1ae8640d3527ca7ac8df4bcbf14ccc6ae9cd;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

JFS: Check for invalid inodes in jfs_delete_inode

Some error paths may iput an invalid inode with i_nlink=0.  jfs should
not try to actually delete such an inode.

Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
---

diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 2137138c59b0..767c7ecb429e 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -128,6 +128,10 @@ void jfs_delete_inode(struct inode *inode)
 {
 	jfs_info("In jfs_delete_inode, inode = 0x%p", inode);
 
+	if (is_bad_inode(inode) ||
+	    (JFS_IP(inode)->fileset != cpu_to_le32(FILESYSTEM_I)))
+			return;
+
 	if (test_cflag(COMMIT_Freewmap, inode))
 		jfs_free_zero_link(inode);