diff options
| -rw-r--r-- | drivers/block/cciss.c | 25 |
1 files changed, 18 insertions, 7 deletions
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index eab81c6c0ca5..873e594860d3 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -4326,10 +4326,15 @@ clean4: for (k = 0; k < hba[i]->nr_cmds; k++) kfree(hba[i]->scatter_list[k]); kfree(hba[i]->scatter_list); - for (j = 0; j < hba[i]->nr_cmds; j++) { - if (hba[i]->cmd_sg_list[j]) - kfree(hba[i]->cmd_sg_list[j]->sgchain); - kfree(hba[i]->cmd_sg_list[j]); + /* Only free up extra s/g lists if controller supports them */ + if (hba[i]->chainsize > 0) { + for (j = 0; j < hba[i]->nr_cmds; j++) { + if (hba[i]->cmd_sg_list[j]) { + kfree(hba[i]->cmd_sg_list[j]->sgchain); + kfree(hba[i]->cmd_sg_list[j]); + } + } + kfree(hba[i]->cmd_sg_list); } if (hba[i]->cmd_pool) pci_free_consistent(hba[i]->pdev, @@ -4448,9 +4453,15 @@ static void __devexit cciss_remove_one(struct pci_dev *pdev) for (j = 0; j < hba[i]->nr_cmds; j++) kfree(hba[i]->scatter_list[j]); kfree(hba[i]->scatter_list); - for (j = 0; j < hba[i]->nr_cmds; j++) { - kfree(hba[i]->cmd_sg_list[j]->sgchain); - kfree(hba[i]->cmd_sg_list[j]); + /* Only free up extra s/g lists if controller supports them */ + if (hba[i]->chainsize > 0) { + for (j = 0; j < hba[i]->nr_cmds; j++) { + if (hba[i]->cmd_sg_list[j]) { + kfree(hba[i]->cmd_sg_list[j]->sgchain); + kfree(hba[i]->cmd_sg_list[j]); + } + } + kfree(hba[i]->cmd_sg_list); } /* * Deliberately omit pci_disable_device(): it does something nasty to |