proc_fops: convert drivers/isdn/ to seq_file

Convert code away from ->read_proc/->write_proc interfaces.  Switch to
proc_create()/proc_create_data() which make addition of proc entries
reliable wrt NULL ->proc_fops, NULL ->data and so on.

Problem with ->read_proc et al is described here commit
786d7e1612f0b0adb6046f19b906609e4fe8b1ba "Fix rmmod/read/write races in
/proc entries"

[akpm@linux-foundation.org: CONFIG_PROC_FS=n build fix]
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Karsten Keil <keil@b1-systems.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 7 deletions

diff --git a/drivers/isdn/capi/kcapi.c b/drivers/isdn/capi/kcapi.c
index dc506ab99cac..b0bacf377c18 100644
--- a/drivers/isdn/capi/kcapi.c
+++ b/drivers/isdn/capi/kcapi.c
@@ -490,13 +490,7 @@ attach_capi_ctr(struct capi_ctr *card)
         card->traceflag = showcapimsgs;
 
         sprintf(card->procfn, "capi/controllers/%d", card->cnr);
-        card->procent = create_proc_entry(card->procfn, 0, NULL);
-        if (card->procent) {
-           card->procent->read_proc = 
-                (int (*)(char *,char **,off_t,int,int *,void *))
-                        card->ctr_read_proc;
-           card->procent->data = card;
-        }
+        card->procent = proc_create_data(card->procfn, 0, NULL, card->proc_fops, card);
 
         ncards++;
         printk(KERN_NOTICE "kcapi: Controller [%03d]: %s attached\n",