[SCSI] libosd: bug in osd_req_decode_sense_full()
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>
diff --git a/drivers/scsi/osd/osd_initiator.c b/drivers/scsi/osd/osd_initiator.c
index 60b7ca1..5e90d19 100644
--- a/drivers/scsi/osd/osd_initiator.c
+++ b/drivers/scsi/osd/osd_initiator.c
@@ -1583,15 +1583,14 @@
{
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 @@
bad_attr_list++;
max_attr--;
}
+
+ len -= sizeof(*pattr);
OSD_SENSE_PRINT2(
"osd_sense_attribute_identification"
"attr_page=0x%x attr_id=0x%x\n",