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bluetooth: rfcomm_init bug fix

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rfcomm tty may be used before rfcomm_tty_driver initilized,
The problem is that now socket layer init before tty layer, if userspace
program do socket callback right here then oops will happen.

reporting in:
http://marc.info/?l=linux-bluetooth&m=124404919324542&w=2

make 3 changes:
1. remove #ifdef in rfcomm/core.c,
make it blank function when rfcomm tty not selected in rfcomm.h

2. tune the rfcomm_init error patch to ensure
tty driver initilized before rfcomm socket usage.

3. remove __exit for rfcomm_cleanup_sockets
because above change need call it in a __init function.

Reported-by: Oliver Hartkopp <oliver@hartkopp.net>
Tested-by: Oliver Hartkopp <oliver@hartkopp.net>
Signed-off-by: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dave Young 2009-08-03 04:26:16 +00:00 • committed by David S. Miller
parent eb4ad82641
commit af0d3b103b
3 changed files with 31 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

2
net/bluetooth/rfcomm/sock.c
View file

@ -1132,7 +1132,7 @@ error:
return err;
}
void __exit rfcomm_cleanup_sockets(void)
void rfcomm_cleanup_sockets(void)
{
class_remove_file(bt_class, &class_attr_rfcomm);