On a 32 bit kernel sizeof(void *) is not 64 bits as hv_mpb_array
requires. Also the buffer needs to be cleared or the upper bytes
will contain junk.
Suggested-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
Signed-off-by: Cathy Avery <cavery@xxxxxxxxxx>
ChangeLog:
v1) Initial submission
v2) Remove memset and replace kmalloc with kzalloc.
---
drivers/scsi/storvsc_drv.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 8ccfc9e..05526b7 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1495,9 +1495,9 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd)
if (sg_count) {
if (sg_count > MAX_PAGE_BUFFER_COUNT) {
- payload_sz = (sg_count * sizeof(void *) +
+ payload_sz = (sg_count * sizeof(u64) +
sizeof(struct vmbus_packet_mpb_array));
- payload = kmalloc(payload_sz, GFP_ATOMIC);
+ payload = kzalloc(payload_sz, GFP_ATOMIC);
if (!payload)
return SCSI_MLQUEUE_DEVICE_BUSY;
}
--
2.5.0
--
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