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greybus: connection: fix potential null-deref on create 

Make sure that the interface lookup helper can handle static,
bundle-less connections without oopsing when creating further
connections.

Note that the initial svc-connection has always been bundle-less, but
did not trigger an oops as a bundle was created for it before further
connections were created.

Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
This commit is contained in:
Johan Hovold 2015-11-25 15:59:12 +01:00 committed by Greg Kroah-Hartman
parent 2566fae6a5
commit 0daf17b9e4
1 changed files with 4 additions and 2 deletions
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6
drivers/staging/greybus/connection.c
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@ -20,10 +20,12 @@ gb_connection_intf_find(struct gb_interface *intf, u16 cport_id)
struct gb_host_device *hd = intf->hd;
struct gb_connection *connection;
list_for_each_entry(connection, &hd->connections, hd_links)
if (connection->bundle->intf == intf &&
list_for_each_entry(connection, &hd->connections, hd_links) {
if (connection->intf == intf &&
connection->intf_cport_id == cport_id)
return connection;
}
return NULL;
}