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[SCSI] libosd: bug in osd_req_decode_sense_full()

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The (never tested) osd_sense_attribute_identification case
has never worked. The loop was never advanced on.
Fix it to work as intended.

On 10/30/2009 04:39 PM, Roel Kluin wrote:
  I found this by code analysis, searching for while
  loops that test a local variable, but do not modify
  the variable.

Reported-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Boaz Harrosh 2009-11-16 20:47:07 +02:00 committed by James Bottomley
parent 2cdd6410e5
commit 71ecb74b15
1 changed files with 5 additions and 4 deletions
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9
drivers/scsi/osd/osd_initiator.c
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@ -1583,15 +1583,14 @@ int osd_req_decode_sense_full(struct osd_request *or,
{
struct osd_sense_attributes_data_descriptor
*osadd = cur_descriptor;
int len = min(cur_len, sense_len);
int i = 0;
unsigned len = min(cur_len, sense_len);
struct osd_sense_attr *pattr = osadd->sense_attrs;
while (len < 0) {
while (len >= sizeof(*pattr)) {
u32 attr_page = be32_to_cpu(pattr->attr_page);
u32 attr_id = be32_to_cpu(pattr->attr_id);
if (i++ == 0) {
if (!osi->attr.attr_page) {
osi->attr.attr_page = attr_page;
osi->attr.attr_id = attr_id;
}
@ -1602,6 +1601,8 @@ int osd_req_decode_sense_full(struct osd_request *or,
bad_attr_list++;
max_attr--;
}
len -= sizeof(*pattr);
OSD_SENSE_PRINT2(
"osd_sense_attribute_identification"
"attr_page=0x%x attr_id=0x%x\n",