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authorDavid S. Miller <davem@davemloft.net>2009-11-18 22:19:03 -0800
committerDavid S. Miller <davem@davemloft.net>2009-11-18 22:19:03 -0800
commit3505d1a9fd65e2d3e00827857b6795d9d8983658 (patch)
tree941cfafdb57c427bb6b7ebf6354ee93b2a3693b5 /drivers/scsi/sr.c
parentdfef948ed2ba69cf041840b5e860d6b4e16fa0b1 (diff)
parent66b00a7c93ec782d118d2c03bd599cfd041e80a1 (diff)
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: drivers/net/sfc/sfe4001.c drivers/net/wireless/libertas/cmd.c drivers/staging/Kconfig drivers/staging/Makefile drivers/staging/rtl8187se/Kconfig drivers/staging/rtl8192e/Kconfig
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) {