From 46c23d7f520e315dde86881b38ba92ebdf34ced5 Mon Sep 17 00:00:00 2001 From: Lubomir Rintel Date: Tue, 29 Jun 2010 15:05:38 -0700 Subject: sysvfs: fix NULL deref. when allocating new inode A call to sysv_write_inode() in sysv_new_inode() to its new interface that replaced wait flag with writeback structure. This was broken by a9185b41a4f84971b930c519f0c63bd450c4810d ("pass writeback_control to ->write_inode"). Signed-off-by: Lubomir Rintel Cc: Christoph Hellwig Cc: Al Viro Cc: [2.6.34.x] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/sysv/ialloc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'fs/sysv') diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c index bbd69bd..fcc498e 100644 --- a/fs/sysv/ialloc.c +++ b/fs/sysv/ialloc.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "sysv.h" /* We don't trust the value of @@ -139,6 +140,9 @@ struct inode * sysv_new_inode(const struct inode * dir, mode_t mode) struct inode *inode; sysv_ino_t ino; unsigned count; + struct writeback_control wbc = { + .sync_mode = WB_SYNC_NONE + }; inode = new_inode(sb); if (!inode) @@ -168,7 +172,7 @@ struct inode * sysv_new_inode(const struct inode * dir, mode_t mode) insert_inode_hash(inode); mark_inode_dirty(inode); - sysv_write_inode(inode, 0); /* ensure inode not allocated again */ + sysv_write_inode(inode, &wbc); /* ensure inode not allocated again */ mark_inode_dirty(inode); /* cleared by sysv_write_inode() */ /* That's it. */ unlock_super(sb); -- cgit v1.1