Re: [PATCH] eventfs: Directly return NULL to avoid null point dereferenced

From: Hao Ge
Date: Sun May 12 2024 - 23:26:19 EST


Hi Markus


Thanks for your review.


在 5/13/24 01:12, Markus Elfring 写道:
When the condition ei->is_free holds,we return NULL directly to
avoid update_events_attr to use NULL point about ei.
* Please avoid typos in the summary phrase and the commit message.

* Would you like to use an imperative wording for an improved change description?
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.9-rc7#n94



OK, I'll study it,
+++ b/fs/tracefs/event_inode.c
@@ -346,8 +346,7 @@ static struct eventfs_inode *eventfs_find_events(struct dentry *dentry)
* doesn't matter.
*/
if (ei->is_freed) {
- ei = NULL;
- break;
+ return NULL;
}


How do you think about to omit curly brackets here?
You are right, I will make changes to it in future versions

Regards,
Markus

Best Regards

Hao