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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2021-06-07 18:37:29 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-07-29 18:29:14 +0300
commit9b945d74a5fc14c1f9a7ae98c10921d48c194105 (patch)
tree44cc109477064ef0be1ac2a899c3178eeb1e126e /drivers/pps/clients
parentfa11c81ce2a19b30af2fc16d3958efece4fd56d0 (diff)
downloadlinux-9b945d74a5fc14c1f9a7ae98c10921d48c194105.tar.xz
pps: clients: parport: Switch to use module_parport_driver()
Switch to use module_parport_driver() to reduce boilerplate code. Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210607153729.58623-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pps/clients')
-rw-r--r--drivers/pps/clients/pps_parport.c42
1 files changed, 8 insertions, 34 deletions
diff --git a/drivers/pps/clients/pps_parport.c b/drivers/pps/clients/pps_parport.c
index 7a41fb7b0dec..42f93d4c6ee3 100644
--- a/drivers/pps/clients/pps_parport.c
+++ b/drivers/pps/clients/pps_parport.c
@@ -22,8 +22,6 @@
#include <linux/parport.h>
#include <linux/pps_kernel.h>
-#define DRVDESC "parallel port PPS client"
-
/* module parameters */
#define CLEAR_WAIT_MAX 100
@@ -138,6 +136,12 @@ static void parport_attach(struct parport *port)
.dev = NULL
};
+ if (clear_wait > CLEAR_WAIT_MAX) {
+ pr_err("clear_wait value should be not greater then %d\n",
+ CLEAR_WAIT_MAX);
+ return;
+ }
+
device = kzalloc(sizeof(struct pps_client_pp), GFP_KERNEL);
if (!device) {
pr_err("memory allocation failed, not attaching\n");
@@ -214,38 +218,8 @@ static struct parport_driver pps_parport_driver = {
.detach = parport_detach,
.devmodel = true,
};
-
-/* module staff */
-
-static int __init pps_parport_init(void)
-{
- int ret;
-
- pr_info(DRVDESC "\n");
-
- if (clear_wait > CLEAR_WAIT_MAX) {
- pr_err("clear_wait value should be not greater"
- " then %d\n", CLEAR_WAIT_MAX);
- return -EINVAL;
- }
-
- ret = parport_register_driver(&pps_parport_driver);
- if (ret) {
- pr_err("unable to register with parport\n");
- return ret;
- }
-
- return 0;
-}
-
-static void __exit pps_parport_exit(void)
-{
- parport_unregister_driver(&pps_parport_driver);
-}
-
-module_init(pps_parport_init);
-module_exit(pps_parport_exit);
+module_parport_driver(pps_parport_driver);
MODULE_AUTHOR("Alexander Gordeev <lasaine@lvk.cs.msu.su>");
-MODULE_DESCRIPTION(DRVDESC);
+MODULE_DESCRIPTION("parallel port PPS client");
MODULE_LICENSE("GPL");