From 659f865ea65a60564ce00a0c571099d1fa55e8e3 Mon Sep 17 00:00:00 2001
From: "Denis V. Lunev" <den@openvz.org>
Date: Tue, 29 Apr 2008 01:02:16 -0700
Subject: [PATCH] zorro: use non-racy method for proc entries creation
Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data
be setup before gluing PDE to main tree.
Add correct ->owner to proc_fops to fix reading/module unloading race.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/zorro/proc.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/zorro/proc.c b/drivers/zorro/proc.c
index 1b4317d7d7aad..099b6fb5b5cbd 100644
--- a/drivers/zorro/proc.c
+++ b/drivers/zorro/proc.c
@@ -77,6 +77,7 @@ proc_bus_zorro_read(struct file *file, char __user *buf, size_t nbytes, loff_t *
}
static const struct file_operations proc_bus_zorro_operations = {
+ .owner = THIS_MODULE,
.llseek = proc_bus_zorro_lseek,
.read = proc_bus_zorro_read,
};
@@ -136,11 +137,11 @@ static int __init zorro_proc_attach_device(u_int slot)
char name[4];
sprintf(name, "%02x", slot);
- entry = create_proc_entry(name, 0, proc_bus_zorro_dir);
+ entry = proc_create_data(name, 0, proc_bus_zorro_dir,
+ &proc_bus_zorro_operations,
+ &zorro_autocon[slot]);
if (!entry)
return -ENOMEM;
- entry->proc_fops = &proc_bus_zorro_operations;
- entry->data = &zorro_autocon[slot];
entry->size = sizeof(struct zorro_dev);
return 0;
}
--
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