[PATCH 2/4] parport: do not check portlist when using device-model
From: Sudip Mukherjee
Date: Wed Oct 16 2019 - 10:45:48 EST
We do not need to maintain a list of ports when we are using the
device-model. The base layer is going to maintain the list for us and
we can get the list of ports just using bus_for_each_dev().
Signed-off-by: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx>
---
drivers/parport/share.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/parport/share.c b/drivers/parport/share.c
index 7b4ee33c1935..96538b7975e5 100644
--- a/drivers/parport/share.c
+++ b/drivers/parport/share.c
@@ -266,9 +266,6 @@ static int port_check(struct device *dev, void *dev_drv)
int __parport_register_driver(struct parport_driver *drv, struct module *owner,
const char *mod_name)
{
- if (list_empty(&portlist))
- get_lowlevel_driver();
-
if (drv->devmodel) {
/* using device model */
int ret;
@@ -292,6 +289,8 @@ int __parport_register_driver(struct parport_driver *drv, struct module *owner,
drv->devmodel = false;
+ if (list_empty(&portlist))
+ get_lowlevel_driver();
mutex_lock(®istration_lock);
list_for_each_entry(port, &portlist, list)
drv->attach(port);
--
2.11.0