diff options
| -rw-r--r-- | drivers/ide/ide-cd.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index e54da025a31c..17f19f799cc6 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -1411,6 +1411,7 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, int stat; struct request req; + u32 blocklen; ide_cd_init_rq(drive, &req); @@ -1427,23 +1428,24 @@ static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, /* * Sanity check the given block size */ - switch (capbuf.blocklen) { - case __constant_cpu_to_be32(512): - case __constant_cpu_to_be32(1024): - case __constant_cpu_to_be32(2048): - case __constant_cpu_to_be32(4096): + blocklen = be32_to_cpu(capbuf.blocklen); + switch (blocklen) { + case 512: + case 1024: + case 2048: + case 4096: break; default: printk(KERN_ERR "%s: weird block size %u\n", - drive->name, capbuf.blocklen); + drive->name, blocklen); printk(KERN_ERR "%s: default to 2kb block size\n", drive->name); - capbuf.blocklen = __constant_cpu_to_be32(2048); + blocklen = 2048; break; } *capacity = 1 + be32_to_cpu(capbuf.lba); - *sectors_per_frame = be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS; + *sectors_per_frame = blocklen >> SECTOR_BITS; return 0; } |