From ac41cfd19bf77424519b962f8205ede51fceaac6 Mon Sep 17 00:00:00 2001 From: Denis V. Lunev Date: Tue, 29 Apr 2008 01:02:30 -0700 Subject: isdn: 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 Acked-by: Karsten Keil Cc: Alexey Dobriyan Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/isdn/hysdn/hysdn_procconf.c | 9 ++++----- drivers/isdn/hysdn/hysdn_proclog.c | 8 ++++---- 2 files changed, 8 insertions(+), 9 deletions(-) (limited to 'drivers/isdn/hysdn') diff --git a/drivers/isdn/hysdn/hysdn_procconf.c b/drivers/isdn/hysdn/hysdn_procconf.c index 27d890b48f88..877be9922c3d 100644 --- a/drivers/isdn/hysdn/hysdn_procconf.c +++ b/drivers/isdn/hysdn/hysdn_procconf.c @@ -370,6 +370,7 @@ hysdn_conf_close(struct inode *ino, struct file *filep) /******************************************************/ static const struct file_operations conf_fops = { + .owner = THIS_MODULE, .llseek = no_llseek, .read = hysdn_conf_read, .write = hysdn_conf_write, @@ -402,11 +403,9 @@ hysdn_procconf_init(void) while (card) { sprintf(conf_name, "%s%d", PROC_CONF_BASENAME, card->myid); - if ((card->procconf = (void *) create_proc_entry(conf_name, - S_IFREG | S_IRUGO | S_IWUSR, - hysdn_proc_entry)) != NULL) { - ((struct proc_dir_entry *) card->procconf)->proc_fops = &conf_fops; - ((struct proc_dir_entry *) card->procconf)->owner = THIS_MODULE; + if ((card->procconf = (void *) proc_create(conf_name, + S_IFREG | S_IRUGO | S_IWUSR, + hysdn_proc_entry)) != NULL) { hysdn_proclog_init(card); /* init the log file entry */ } card = card->next; /* next entry */ diff --git a/drivers/isdn/hysdn/hysdn_proclog.c b/drivers/isdn/hysdn/hysdn_proclog.c index 27b3991fb0ec..8991d2c8ee4a 100644 --- a/drivers/isdn/hysdn/hysdn_proclog.c +++ b/drivers/isdn/hysdn/hysdn_proclog.c @@ -380,6 +380,7 @@ hysdn_log_poll(struct file *file, poll_table * wait) /**************************************************/ static const struct file_operations log_fops = { + .owner = THIS_MODULE, .llseek = no_llseek, .read = hysdn_log_read, .write = hysdn_log_write, @@ -402,10 +403,9 @@ hysdn_proclog_init(hysdn_card * card) if ((pd = kzalloc(sizeof(struct procdata), GFP_KERNEL)) != NULL) { sprintf(pd->log_name, "%s%d", PROC_LOG_BASENAME, card->myid); - if ((pd->log = create_proc_entry(pd->log_name, S_IFREG | S_IRUGO | S_IWUSR, hysdn_proc_entry)) != NULL) { - pd->log->proc_fops = &log_fops; - pd->log->owner = THIS_MODULE; - } + pd->log = proc_create(pd->log_name, + S_IFREG | S_IRUGO | S_IWUSR, hysdn_proc_entry, + &log_fops); init_waitqueue_head(&(pd->rd_queue)); -- cgit v1.2.3