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[SCSI] sd: Fix VPD buffer allocations 

Commit e3deec09 incorrectly assumed that the B0 and B1 page lengths were
limited to 32 bytes.  The B0 VPD page length is defined to be 64 bytes
when the device supports thin provisioning.  B1 is always defined to be
64 bytes.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Martin K. Petersen 2010-03-02 08:44:34 -05:00 committed by James Bottomley
parent 74315ad00b
commit bb2d3de188
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/sd.c
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@ -1948,7 +1948,7 @@ static void sd_read_block_limits(struct scsi_disk *sdkp)
{
struct request_queue *q = sdkp->disk->queue;
unsigned int sector_sz = sdkp->device->sector_size;
const int vpd_len = 32;
const int vpd_len = 64;
unsigned char *buffer = kmalloc(vpd_len, GFP_KERNEL);
if (!buffer ||
@ -1998,7 +1998,7 @@ static void sd_read_block_characteristics(struct scsi_disk *sdkp)
{
unsigned char *buffer;
u16 rot;
const int vpd_len = 32;
const int vpd_len = 64;
buffer = kmalloc(vpd_len, GFP_KERNEL);