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author | Martin K. Petersen <martin.petersen@oracle.com> | 2017-04-04 14:42:30 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-04-21 07:31:21 (GMT) |
commit | 08383b004426591502b86bfacdc638d85cedf26c (patch) | |
tree | 699f2650c7c381fc1fc08122de863c516a34c1ed /drivers/target/loopback | |
parent | 64e746983c4c8c88393866485cbca1782071aeb1 (diff) | |
download | linux-08383b004426591502b86bfacdc638d85cedf26c.tar.xz |
scsi: sd: Fix capacity calculation with 32-bit sector_t
commit 7c856152cb92f8eee2df29ef325a1b1f43161aff upstream.
We previously made sure that the reported disk capacity was less than
0xffffffff blocks when the kernel was not compiled with large sector_t
support (CONFIG_LBDAF). However, this check assumed that the capacity
was reported in units of 512 bytes.
Add a sanity check function to ensure that we only enable disks if the
entire reported capacity can be expressed in terms of sector_t.
Reported-by: Steve Magnani <steve.magnani@digidescorp.com>
Cc: Bart Van Assche <Bart.VanAssche@sandisk.com>
Reviewed-by: Bart Van Assche <Bart.VanAssche@sandisk.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/target/loopback')
0 files changed, 0 insertions, 0 deletions