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| author | Martin K. Petersen <martin.petersen@oracle.com> | 2010-09-10 01:20:27 -0400 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-09-16 11:48:48 -0400 |
| commit | 16d3ea26f82271fef9b1c4523b5e1ea31fa39eec (patch) | |
| tree | eeb4e01e9d46adc8f83208d1162cc8f4ab327128 | |
| parent | 9c03f1622af051004416dd3e24d8a0fa31e34178 (diff) | |
| download | linux-stable-16d3ea26f82271fef9b1c4523b5e1ea31fa39eec.tar.gz linux-stable-16d3ea26f82271fef9b1c4523b5e1ea31fa39eec.tar.bz2 linux-stable-16d3ea26f82271fef9b1c4523b5e1ea31fa39eec.zip | |
[SCSI] Fix VPD inquiry page wrapper
Fix two bugs in the VPD page wrapper:
- Don't return failure if the user asked for page 0
- The end of buffer check failed to account for the page header size
and consequently didn't work
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| -rw-r--r-- | drivers/scsi/scsi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c index ad0ed212db4a..348fba0a8976 100644 --- a/drivers/scsi/scsi.c +++ b/drivers/scsi/scsi.c @@ -1046,13 +1046,13 @@ int scsi_get_vpd_page(struct scsi_device *sdev, u8 page, unsigned char *buf, /* If the user actually wanted this page, we can skip the rest */ if (page == 0) - return -EINVAL; + return 0; for (i = 0; i < min((int)buf[3], buf_len - 4); i++) if (buf[i + 4] == page) goto found; - if (i < buf[3] && i > buf_len) + if (i < buf[3] && i >= buf_len - 4) /* ran off the end of the buffer, give us benefit of doubt */ goto found; /* The device claims it doesn't support the requested page */ |