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s390: remove WARN_ON for misc_deregister() failures

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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@gmail.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita 2010-08-09 17:20:35 -07:00 committed by Linus Torvalds
parent b329becfc7
commit 547415d5ed
3 changed files with 3 additions and 3 deletions
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2
drivers/s390/block/dasd_eer.c
View File

@ -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;
}

2
drivers/s390/char/monreader.c
View File

@ -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);

2
drivers/s390/char/monwriter.c
View File

@ -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);
}