[PATCH] dvb: modified dvb_register_adapter() to avoid kmalloc/kfree

Modified dvb_register_adapter() to avoid kmalloc/kfree.  Drivers have to embed
struct dvb_adapter into their private data struct from now on.  (Andreas
Oberritter)

Signed-off-by: Johannes Stezenbach <js@linuxtv.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 2 insertions, 9 deletions

diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index cf4ffe38fda3..9d9662f4b8e6 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -286,9 +286,8 @@ skip:
 }
 
 
-int dvb_register_adapter(struct dvb_adapter **padap, const char *name, struct module *module)
+int dvb_register_adapter(struct dvb_adapter *adap, const char *name, struct module *module)
 {
-        struct dvb_adapter *adap;
         int num;
 
         if (down_interruptible (&dvbdev_register_lock))
@@ -299,11 +298,6 @@ int dvb_register_adapter(struct dvb_adapter **padap, const char *name, struct mo
                 return -ENFILE;
         }
 
-        if (!(*padap = adap = kmalloc(sizeof(struct dvb_adapter), GFP_KERNEL))) {
-                up(&dvbdev_register_lock);
-                return -ENOMEM;
-        }
-
         memset (adap, 0, sizeof(struct dvb_adapter));
         INIT_LIST_HEAD (&adap->device_list);
 
@@ -331,7 +325,6 @@ int dvb_unregister_adapter(struct dvb_adapter *adap)
                 return -ERESTARTSYS;
         list_del (&adap->list_head);
         up (&dvbdev_register_lock);
-        kfree (adap);
         return 0;
 }
 EXPORT_SYMBOL(dvb_unregister_adapter);
diff --git a/drivers/media/dvb/dvb-core/dvbdev.h b/drivers/media/dvb/dvb-core/dvbdev.h
index 184edba3caa7..a251867f30f1 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.h
+++ b/drivers/media/dvb/dvb-core/dvbdev.h
@@ -76,7 +76,7 @@ struct dvb_device {
 };
 
 
-extern int dvb_register_adapter (struct dvb_adapter **padap, const char *name, struct module *module);
+extern int dvb_register_adapter (struct dvb_adapter *adap, const char *name, struct module *module);
 extern int dvb_unregister_adapter (struct dvb_adapter *adap);
 
 extern int dvb_register_device (struct dvb_adapter *adap,