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[SCSI] fix sense buffer length handling problem 

The new bio code was incorrectly converted from stack allocated to
kmalloc'd buffer handling.  There are two places where it incorrectly
uses sizeof(*sense) to get the size of the sense buffer.  This
actually produces one, so no sense data was ever getting back, causing
failure in things like disk spin up.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Bottomley 2005-08-09 11:55:36 -05:00 committed by James Bottomley
parent c9d297c543
commit e514385be2
1 changed files with 2 additions and 2 deletions
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4
drivers/scsi/scsi_lib.c
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@ -342,12 +342,12 @@ int scsi_execute_req(struct scsi_device *sdev, const unsigned char *cmd,
sense = kmalloc(SCSI_SENSE_BUFFERSIZE, GFP_KERNEL);
if (!sense)
return DRIVER_ERROR << 24;
memset(sense, 0, sizeof(*sense));
memset(sense, 0, SCSI_SENSE_BUFFERSIZE);
}
result = scsi_execute(sdev, cmd, data_direction, buffer, bufflen,
sense, timeout, retries, 0);
if (sshdr)
scsi_normalize_sense(sense, sizeof(*sense), sshdr);
scsi_normalize_sense(sense, SCSI_SENSE_BUFFERSIZE, sshdr);
kfree(sense);
return result;