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[v2,20/41] CAPI: Clean up capinc_tty_init/exit

Message ID 5d527d17d635af5578d3e64b698bee4a8dd1450c.1265659935.git.jan.kiszka@web.de
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Jan Kiszka Feb. 8, 2010, 8:12 p.m. UTC
Return proper error code if tty_register_driver fails. In contrast,
tty_unregister_driver cannot practically fail, so drop that error
handling. Finally, mark capinc_tty_init/exit with __init/__exit.

Signed-off-by: Jan Kiszka <jan.kiszka@web.de>
---
 drivers/isdn/capi/capi.c |   20 ++++++++++----------
 1 files changed, 10 insertions(+), 10 deletions(-)
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Patch

diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c
index 46f85ae..c22b349 100644
--- a/drivers/isdn/capi/capi.c
+++ b/drivers/isdn/capi/capi.c
@@ -1307,10 +1307,11 @@  static const struct tty_operations capinc_ops = {
 	.send_xchar = capinc_tty_send_xchar,
 };
 
-static int capinc_tty_init(void)
+static int __init capinc_tty_init(void)
 {
 	struct tty_driver *drv;
-	
+	int err;
+
 	if (capi_ttyminors > CAPINC_MAX_PORTS)
 		capi_ttyminors = CAPINC_MAX_PORTS;
 	if (capi_ttyminors <= 0)
@@ -1340,23 +1341,22 @@  static int capinc_tty_init(void)
 	drv->init_termios.c_lflag = 0;
 	drv->flags = TTY_DRIVER_REAL_RAW|TTY_DRIVER_RESET_TERMIOS;
 	tty_set_operations(drv, &capinc_ops);
-	if (tty_register_driver(drv)) {
+
+	err = tty_register_driver(drv);
+	if (err) {
 		put_tty_driver(drv);
 		kfree(capiminors);
 		printk(KERN_ERR "Couldn't register capi_nc driver\n");
-		return -1;
+		return err;
 	}
 	capinc_tty_driver = drv;
 	return 0;
 }
 
-static void capinc_tty_exit(void)
+static void __exit capinc_tty_exit(void)
 {
-	struct tty_driver *drv = capinc_tty_driver;
-	int retval;
-	if ((retval = tty_unregister_driver(drv)))
-		printk(KERN_ERR "capi: failed to unregister capi_nc driver (%d)\n", retval);
-	put_tty_driver(drv);
+	tty_unregister_driver(capinc_tty_driver);
+	put_tty_driver(capinc_tty_driver);
 	kfree(capiminors);
 }