diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/ide/ide-cd.c | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index f0191f06177..2e0c9337758 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -714,6 +714,31 @@ int cdrom_read_check_ireason (ide_drive_t *drive, int len, int ireason) } /* + * Assume that the drive will always provide data in multiples of at least + * SECTOR_SIZE, as it gets hairy to keep track of the transfers otherwise. + */ +static int ide_cd_check_transfer_size(ide_drive_t *drive, int len) +{ + struct cdrom_info *cd = drive->driver_data; + + if ((len % SECTOR_SIZE) == 0) + return 0; + + printk(KERN_ERR "%s: %s: Bad transfer size %d\n", + drive->name, __FUNCTION__, len); + + if (cd->cd_flags & IDE_CD_FLAG_LIMIT_NFRAMES) + printk(KERN_ERR " This drive is not supported by " + "this version of the driver\n"); + else { + printk(KERN_ERR " Trying to limit transfer sizes\n"); + cd->cd_flags |= IDE_CD_FLAG_LIMIT_NFRAMES; + } + + return 1; +} + +/* * Interrupt routine. Called when a read request has completed. */ static ide_startstop_t cdrom_read_intr (ide_drive_t *drive) @@ -774,18 +799,7 @@ static ide_startstop_t cdrom_read_intr (ide_drive_t *drive) if (cdrom_read_check_ireason (drive, len, ireason)) return ide_stopped; - /* Assume that the drive will always provide data in multiples - of at least SECTOR_SIZE, as it gets hairy to keep track - of the transfers otherwise. */ - if ((len % SECTOR_SIZE) != 0) { - printk (KERN_ERR "%s: cdrom_read_intr: Bad transfer size %d\n", - drive->name, len); - if (info->cd_flags & IDE_CD_FLAG_LIMIT_NFRAMES) - printk (KERN_ERR " This drive is not supported by this version of the driver\n"); - else { - printk (KERN_ERR " Trying to limit transfer sizes\n"); - info->cd_flags |= IDE_CD_FLAG_LIMIT_NFRAMES; - } + if (ide_cd_check_transfer_size(drive, len)) { cdrom_end_request(drive, 0); return ide_stopped; } |