pm8001: fix a memory leak in flash_update
ccb->fw_control_context is copied to local fw_control_context and
the local variable is never used later
Free ccb->fw_control_context. The task is forgotten thus also the
reference to fw_control_context and the completion thread takes the info
from virt_ptr again.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: Suresh Thiagarajan <Suresh.Thiagarajan@pmcs.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index cc89d18..2e5eb4b 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -3624,15 +3624,11 @@
void *piomb)
{
u32 status;
- struct fw_control_ex fw_control_context;
struct fw_flash_Update_resp *ppayload =
(struct fw_flash_Update_resp *)(piomb + 4);
u32 tag = le32_to_cpu(ppayload->tag);
struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
status = le32_to_cpu(ppayload->status);
- memcpy(&fw_control_context,
- ccb->fw_control_context,
- sizeof(fw_control_context));
switch (status) {
case FLASH_UPDATE_COMPLETE_PENDING_REBOOT:
PM8001_MSG_DBG(pm8001_ha,
@@ -3675,11 +3671,11 @@
pm8001_printk("No matched status = %d\n", status));
break;
}
- ccb->fw_control_context->fw_control->retcode = status;
- complete(pm8001_ha->nvmd_completion);
+ kfree(ccb->fw_control_context);
ccb->task = NULL;
ccb->ccb_tag = 0xFFFFFFFF;
pm8001_tag_free(pm8001_ha, tag);
+ complete(pm8001_ha->nvmd_completion);
return 0;
}
@@ -4884,6 +4880,10 @@
break;
}
rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req, 0);
+ if (rc) {
+ kfree(fw_control_context);
+ pm8001_tag_free(pm8001_ha, tag);
+ }
return rc;
}