On 08/05, Xiaoyun Li wrote:
>This patch fixes null pointer dereference issues found by coverity scan.
>
>Coverity issue: 344981, 344991, 345000, 345002, 345006, 345024
>Fixes: 277310027965 ("raw/ntb: introduce NTB raw device driver")
>Cc: sta...@dpdk.org
>
>Signed-off-by: Xiaoyun Li <xiaoyun...@intel.com>
>---
> drivers/raw/ntb/ntb.c | 18 +++++++++++-------
> 1 file changed, 11 insertions(+), 7 deletions(-)
>
>diff --git a/drivers/raw/ntb/ntb.c b/drivers/raw/ntb/ntb.c
>index 4ba2f3a38..bfecce1e4 100644
>--- a/drivers/raw/ntb/ntb.c
>+++ b/drivers/raw/ntb/ntb.c
>@@ -447,14 +447,16 @@ static int
> ntb_attr_set(struct rte_rawdev *dev, const char *attr_name,
> uint64_t attr_value)
> {
>- struct ntb_hw *hw = dev->dev_private;
>- int index = 0;
>+ struct ntb_hw *hw;
>+ int index;
>
> if (dev == NULL || attr_name == NULL) {
> NTB_LOG(ERR, "Invalid arguments for setting attributes");
> return -EINVAL;
> }
>
>+ hw = dev->dev_private;
>+
> if (!strncmp(attr_name, NTB_SPAD_USER, NTB_SPAD_USER_LEN)) {
> if (hw->ntb_ops->spad_write == NULL)
> return -ENOTSUP;
>@@ -475,14 +477,16 @@ static int
> ntb_attr_get(struct rte_rawdev *dev, const char *attr_name,
> uint64_t *attr_value)
> {
>- struct ntb_hw *hw = dev->dev_private;
>- int index = 0;
>+ struct ntb_hw *hw;
>+ int index;
>
> if (dev == NULL || attr_name == NULL || attr_value == NULL) {
> NTB_LOG(ERR, "Invalid arguments for getting attributes");
> return -EINVAL;
> }
>
>+ hw = dev->dev_private;
>+
> if (!strncmp(attr_name, NTB_TOPO_NAME, NTB_ATTR_NAME_LEN)) {
> *attr_value = hw->topo;
> NTB_LOG(INFO, "Attribute (%s) Value (%" PRIu64 ")",
>@@ -735,7 +739,7 @@ ntb_create(struct rte_pci_device *pci_dev, int socket_id)
>
> if (pci_dev == NULL) {
> NTB_LOG(ERR, "Invalid pci_dev.");
>- ret = -EINVAL;
>+ return -EINVAL;
> }
>
> memset(name, 0, sizeof(name));
>@@ -750,7 +754,7 @@ ntb_create(struct rte_pci_device *pci_dev, int socket_id)
> socket_id);
> if (rawdev == NULL) {
> NTB_LOG(ERR, "Unable to allocate rawdev.");
>- ret = -EINVAL;
>+ return -EINVAL;
> }
>
> rawdev->dev_ops = &ntb_ops;
>@@ -766,7 +770,7 @@ ntb_create(struct rte_pci_device *pci_dev, int socket_id)
> return ret;
>
> fail:
>- if (rawdev)
>+ if (rawdev != NULL)
> rte_rawdev_pmd_release(rawdev);
>
> return ret;
>--
>2.17.1
>
Reviewed-by: Xiaolong Ye <xiaolong...@intel.com>
