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authorLinus Torvalds <torvalds@linux-foundation.org>2009-10-11 11:12:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-10-11 11:12:33 -0700
commit69585dd69e663a40729492c7b52eb82477a2027a (patch)
tree5c179ca88b70856a7f9b56e10151ffa5480f0284 /drivers/scsi/sr.c
parentbd381934bf13ccb1af2813ae26c6fe00ec85d254 (diff)
parentc7922a911c42c5a8bdee6cc75eb6bd66937d4217 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (34 commits) [SCSI] qla2xxx: Fix NULL ptr deref bug in fail path during queue create [SCSI] st: fix possible memory use after free after MTSETBLK ioctl [SCSI] be2iscsi: Moving to pci_pools v3 [SCSI] libiscsi: iscsi_session_setup to allow for private space [SCSI] be2iscsi: add 10Gbps iSCSI - BladeEngine 2 driver [SCSI] zfcp: Fix hang when offlining device with offline chpid [SCSI] zfcp: Fix lockdep warning when offlining device with offline chpid [SCSI] zfcp: Fix oops during shutdown of offline device [SCSI] zfcp: Fix initial device and cfdc for delayed adapter allocation [SCSI] zfcp: correctly initialize unchained requests [SCSI] mpt2sas: Bump version 02.100.03.00 [SCSI] mpt2sas: Support dev remove when phy status is MPI2_EVENT_SAS_TOPO_PHYSTATUS_VACANT [SCSI] mpt2sas: Timeout occurred within the HANDSHAKE logic while waiting on firmware to ACK. [SCSI] mpt2sas: Call init_completion on a per request basis. [SCSI] mpt2sas: Target Reset will be issued from Interrupt context. [SCSI] mpt2sas: Added SCSIIO, Internal and high priority memory pools to support multiple TM [SCSI] mpt2sas: Copyright change to 2009. [SCSI] mpt2sas: Added mpi2_history.txt for MPI2 headers. [SCSI] mpt2sas: Update driver to MPI2 REV K headers. [SCSI] bfa: Brocade BFA FC SCSI driver ...
Diffstat (limited to 'drivers/scsi/sr.c')
-rw-r--r--drivers/scsi/sr.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index eb61f7a70e1..d6f340f48a3 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -684,14 +684,20 @@ static void get_sectorsize(struct scsi_cd *cd)
cd->capacity = 0x1fffff;
sector_size = 2048; /* A guess, just in case */
} else {
-#if 0
- if (cdrom_get_last_written(&cd->cdi,
- &cd->capacity))
-#endif
- cd->capacity = 1 + ((buffer[0] << 24) |
- (buffer[1] << 16) |
- (buffer[2] << 8) |
- buffer[3]);
+ long last_written;
+
+ cd->capacity = 1 + ((buffer[0] << 24) | (buffer[1] << 16) |
+ (buffer[2] << 8) | buffer[3]);
+ /*
+ * READ_CAPACITY doesn't return the correct size on
+ * certain UDF media. If last_written is larger, use
+ * it instead.
+ *
+ * http://bugzilla.kernel.org/show_bug.cgi?id=9668
+ */
+ if (!cdrom_get_last_written(&cd->cdi, &last_written))
+ cd->capacity = max_t(long, cd->capacity, last_written);
+
sector_size = (buffer[4] << 24) |
(buffer[5] << 16) | (buffer[6] << 8) | buffer[7];
switch (sector_size) {