[WATCHDOG] sc1200wdt.c pnp unregister fix.
If no devices found or invalid parameter is specified,
scl200wdt_pnp_driver is left unregistered.
It breaks global list of pnp drivers.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>
diff --git a/drivers/char/watchdog/sc1200wdt.c b/drivers/char/watchdog/sc1200wdt.c
index d8d0f28..e323983 100644
--- a/drivers/char/watchdog/sc1200wdt.c
+++ b/drivers/char/watchdog/sc1200wdt.c
@@ -392,7 +392,7 @@
if (io == -1) {
printk(KERN_ERR PFX "io parameter must be specified\n");
ret = -EINVAL;
- goto out_clean;
+ goto out_pnp;
}
#if defined CONFIG_PNP
@@ -405,7 +405,7 @@
if (!request_region(io, io_len, SC1200_MODULE_NAME)) {
printk(KERN_ERR PFX "Unable to register IO port %#x\n", io);
ret = -EBUSY;
- goto out_clean;
+ goto out_pnp;
}
ret = sc1200wdt_probe();
@@ -435,6 +435,11 @@
out_io:
release_region(io, io_len);
+out_pnp:
+#if defined CONFIG_PNP
+ if (isapnp)
+ pnp_unregister_driver(&scl200wdt_pnp_driver);
+#endif
goto out_clean;
}