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Next: [PATCH 1/2] char: add WARN_ON() in misc_deregister()
From: Akinobu Mita on 29 May 2010 00:40
The previous change added WARN_ON() in misc_deregister().
So it is not necessary to WARN_ON() misc_deregister() failure by
callers.

Signed-off-by: Akinobu Mita <akinobu.mita(a)gmail.com>
Cc: Martin Schwidefsky <schwidefsky(a)de.ibm.com>
Cc: Heiko Carstens <heiko.carstens(a)de.ibm.com>
Cc: linux390(a)de.ibm.com
Cc: linux-s390(a)vger.kernel.org
---
drivers/s390/block/dasd_eer.c | 2 +-
drivers/s390/char/monreader.c | 2 +-
drivers/s390/char/monwriter.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c
index dd88803..7158f95 100644
--- a/drivers/s390/block/dasd_eer.c
+++ b/drivers/s390/block/dasd_eer.c
@@ -701,7 +701,7 @@ int __init dasd_eer_init(void)
void dasd_eer_exit(void)
{
if (dasd_eer_dev) {
- WARN_ON(misc_deregister(dasd_eer_dev) != 0);
+ misc_deregister(dasd_eer_dev);
kfree(dasd_eer_dev);
dasd_eer_dev = NULL;
}
diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c
index 2ed3f82..e021ec6 100644
--- a/drivers/s390/char/monreader.c
+++ b/drivers/s390/char/monreader.c
@@ -627,7 +627,7 @@ out_iucv:
static void __exit mon_exit(void)
{
segment_unload(mon_dcss_name);
- WARN_ON(misc_deregister(&mon_dev) != 0);
+ misc_deregister(&mon_dev);
device_unregister(monreader_device);
driver_unregister(&monreader_driver);
iucv_unregister(&monreader_iucv_handler, 1);
diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c
index 98a49df..572a1e7 100644
--- a/drivers/s390/char/monwriter.c
+++ b/drivers/s390/char/monwriter.c
@@ -380,7 +380,7 @@ out_driver:

static void __exit mon_exit(void)
{
- WARN_ON(misc_deregister(&mon_dev) != 0);
+ misc_deregister(&mon_dev);
platform_device_unregister(monwriter_pdev);
platform_driver_unregister(&monwriter_pdrv);
}
--
1.6.0.6

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Prev: [PATCH 3/8] arch/tile: header files for the Tile architecture.
Next: [PATCH 1/2] char: add WARN_ON() in misc_deregister()