Commit b357d7b5 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Sebastian Reichel

hsi: omap_ssi_port: use normal module refcounting

The ref_module() function is used for internal housekeeping of the
module code, it's not normally used by subsystems or device drivers,
and the use of ref_module in the omap_ssi_port driver causes a link
build error when modules are disabled:

hsi/controllers/omap_ssi_port.c: In function 'ssi_port_probe':
hsi/controllers/omap_ssi_port.c:1119:2: error: implicit declaration of function 'ref_module' [-Werror=implicit-function-declaration]

This changes the omap_ssi_port driver to use try_module_get()
and module_put() instead, which is the normal way to ensure that
the driver providing a device used in another module does not
go away.
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Carlos Chinea <carlos.chinea@nokia.com>
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Signed-off-by: default avatarSebastian Reichel <sre@kernel.org>
parent 518e1624
...@@ -1116,8 +1116,7 @@ static int __init ssi_port_probe(struct platform_device *pd) ...@@ -1116,8 +1116,7 @@ static int __init ssi_port_probe(struct platform_device *pd)
dev_dbg(&pd->dev, "init ssi port...\n"); dev_dbg(&pd->dev, "init ssi port...\n");
err = ref_module(THIS_MODULE, ssi->owner); if (!try_module_get(ssi->owner)) {
if (err) {
dev_err(&pd->dev, "could not increment parent module refcount (err=%d)\n", dev_err(&pd->dev, "could not increment parent module refcount (err=%d)\n",
err); err);
return -ENODEV; return -ENODEV;
...@@ -1254,6 +1253,7 @@ static int __exit ssi_port_remove(struct platform_device *pd) ...@@ -1254,6 +1253,7 @@ static int __exit ssi_port_remove(struct platform_device *pd)
omap_ssi->port[omap_port->port_id] = NULL; omap_ssi->port[omap_port->port_id] = NULL;
platform_set_drvdata(pd, NULL); platform_set_drvdata(pd, NULL);
module_put(ssi->owner);
pm_runtime_disable(&pd->dev); pm_runtime_disable(&pd->dev);
return 0; return 0;
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment