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| author | Arnd Bergmann <arnd.bergmann@de.ibm.com> | 2006-04-11 07:54:31 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-04-11 15:18:45 +0200 |
| commit | 091e881d0e55496d8887b61446ae1c598b0995b6 (patch) | |
| tree | 359de08690a236593f4a24727fc060f7adc0993c | |
| parent | [PATCH] kdump: enable CONFIG_PROC_VMCORE by default (diff) | |
| download | linux-091e881d0e55496d8887b61446ae1c598b0995b6.tar.xz linux-091e881d0e55496d8887b61446ae1c598b0995b6.zip | |
[PATCH] inotify: check for NULL inode in inotify_d_instantiate
The spufs file system creates files in a directory before instantiating the
directory itself, which causes a NULL pointer access in
inotify_d_instantiate since c32ccd87bfd1414b0aabfcd8dbc7539ad23bcbaa.
I'd like to keep this behavior since it means that the user will not have
access to files in the directory before I know that I succeed in creating
everything in it. This patch adds a simple check for the inode to keep
that working.
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | fs/inotify.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/inotify.c b/fs/inotify.c index 367c487c014b..1f50302849c5 100644 --- a/fs/inotify.c +++ b/fs/inotify.c @@ -538,7 +538,7 @@ void inotify_d_instantiate(struct dentry *entry, struct inode *inode) WARN_ON(entry->d_flags & DCACHE_INOTIFY_PARENT_WATCHED); spin_lock(&entry->d_lock); parent = entry->d_parent; - if (inotify_inode_watched(parent->d_inode)) + if (parent->d_inode && inotify_inode_watched(parent->d_inode)) entry->d_flags |= DCACHE_INOTIFY_PARENT_WATCHED; spin_unlock(&entry->d_lock); } |