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Date: Sat, 22 Mar 2008 12:14:14 +0900 From: Akinobu Mita <akinobu.mita@...il.com> To: linux-kernel@...r.kernel.org Cc: Jens Axboe <axboe@...nel.dk>, Adrian McMenamin <adrian@...en.demon.co.uk>, Borislav Petkov <petkovbb@...il.com> Subject: [PATCH 5/5] cdrom: make unregister_cdrom() return void Now unregister_cdrom() always returns 0. Make it return void and update all callers that check the return value. Signed-off-by: Akinobu Mita <akinobu.mita@...il.com> Cc: Adrian McMenamin <adrian@...en.demon.co.uk> Cc: Borislav Petkov <petkovbb@...il.com> Cc: Jens Axboe <axboe@...nel.dk> --- Documentation/cdrom/cdrom-standard.tex | 2 +- drivers/cdrom/cdrom.c | 3 +-- drivers/cdrom/gdrom.c | 4 +++- drivers/cdrom/viocd.c | 5 +---- drivers/ide/ide-cd.c | 5 ++--- include/linux/cdrom.h | 2 +- 6 files changed, 9 insertions(+), 12 deletions(-) Index: 2.6-git/drivers/cdrom/cdrom.c =================================================================== --- 2.6-git.orig/drivers/cdrom/cdrom.c +++ 2.6-git/drivers/cdrom/cdrom.c @@ -442,7 +442,7 @@ int register_cdrom(struct cdrom_device_i } #undef ENSURE -int unregister_cdrom(struct cdrom_device_info *cdi) +void unregister_cdrom(struct cdrom_device_info *cdi) { cdinfo(CD_OPEN, "entering unregister_cdrom\n"); @@ -455,7 +455,6 @@ int unregister_cdrom(struct cdrom_device cdi->ops->n_minors--; cdinfo(CD_REG_UNREG, "drive \"/dev/%s\" unregistered\n", cdi->name); - return 0; } int cdrom_get_media_event(struct cdrom_device_info *cdi, Index: 2.6-git/drivers/cdrom/gdrom.c =================================================================== --- 2.6-git.orig/drivers/cdrom/gdrom.c +++ 2.6-git/drivers/cdrom/gdrom.c @@ -827,7 +827,9 @@ static int __devexit remove_gdrom(struct del_gendisk(gd.disk); if (gdrom_major) unregister_blkdev(gdrom_major, GDROM_DEV_NAME); - return unregister_cdrom(gd.cd_info); + unregister_cdrom(gd.cd_info); + + return 0; } static struct platform_driver gdrom_driver = { Index: 2.6-git/drivers/cdrom/viocd.c =================================================================== --- 2.6-git.orig/drivers/cdrom/viocd.c +++ 2.6-git/drivers/cdrom/viocd.c @@ -650,10 +650,7 @@ static int viocd_remove(struct vio_dev * { struct disk_info *d = &viocd_diskinfo[vdev->unit_address]; - if (unregister_cdrom(&d->viocd_info) != 0) - printk(VIOCD_KERN_WARNING - "Cannot unregister viocd CD-ROM %s!\n", - d->viocd_info.name); + unregister_cdrom(&d->viocd_info); del_gendisk(d->viocd_disk); blk_cleanup_queue(d->viocd_disk->queue); put_disk(d->viocd_disk); Index: 2.6-git/include/linux/cdrom.h =================================================================== --- 2.6-git.orig/include/linux/cdrom.h +++ 2.6-git/include/linux/cdrom.h @@ -995,7 +995,7 @@ extern int cdrom_ioctl(struct file *file extern int cdrom_media_changed(struct cdrom_device_info *); extern int register_cdrom(struct cdrom_device_info *cdi); -extern int unregister_cdrom(struct cdrom_device_info *cdi); +extern void unregister_cdrom(struct cdrom_device_info *cdi); typedef struct { int data; Index: 2.6-git/Documentation/cdrom/cdrom-standard.tex =================================================================== --- 2.6-git.orig/Documentation/cdrom/cdrom-standard.tex +++ 2.6-git/Documentation/cdrom/cdrom-standard.tex @@ -777,7 +777,7 @@ Note that a driver must have one static it may have as many structures $<device>_info$ as there are minor devices active. $Register_cdrom()$ builds a linked list from these. -\subsection{$Int\ unregister_cdrom(struct\ cdrom_device_info * cdi)$} +\subsection{$Void\ unregister_cdrom(struct\ cdrom_device_info * cdi)$} Unregistering device $cdi$ with minor number $MINOR(cdi\to dev)$ removes the minor device from the list. If it was the last registered minor for Index: 2.6-git/drivers/ide/ide-cd.c =================================================================== --- 2.6-git.orig/drivers/ide/ide-cd.c +++ 2.6-git/drivers/ide/ide-cd.c @@ -2030,9 +2030,8 @@ static void ide_cd_release(struct kref * kfree(info->buffer); kfree(info->toc); - if (devinfo->handle == drive && unregister_cdrom(devinfo)) - printk(KERN_ERR "%s: %s failed to unregister device from the cdrom " - "driver.\n", __FUNCTION__, drive->name); + if (devinfo->handle == drive) + unregister_cdrom(devinfo); drive->dsc_overlap = 0; drive->driver_data = NULL; blk_queue_prep_rq(drive->queue, NULL); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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