linux-kernel - Re: [syzbot] Re: [syzbot] [afs?] WARNING: lock held when returning to user space in afs_proc_addr_prefs

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Message-ID: <676cabc8.050a0220.226966.0076.GAE@google.com>
Date: Wed, 25 Dec 2024 17:05:12 -0800
From: syzbot <syzbot+76f33569875eb708e575@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org
Subject: Re: [syzbot] Re: [syzbot] [afs?] WARNING: lock held when returning to
 user space in afs_proc_addr_prefs_write

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Subject: Re: [syzbot] [afs?] WARNING: lock held when returning to user space in afs_proc_addr_prefs_write
Author: lizhi.xu@...driver.com

#syz test

diff --git a/fs/afs/addr_prefs.c b/fs/afs/addr_prefs.c
index a189ff8a5034..ba391f8558d5 100644
--- a/fs/afs/addr_prefs.c
+++ b/fs/afs/addr_prefs.c
@@ -413,8 +413,6 @@ int afs_proc_addr_prefs_write(struct file *file, char *buf, size_t size)
 
 	do {
 		argc = afs_split_string(&buf, argv, ARRAY_SIZE(argv));
-		if (argc < 0)
-			return argc;
 		if (argc < 2)
 			goto inval;