diff options
| author | Byungho An <bh74.an@samsung.com> | 2014-03-28 21:57:44 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-03-28 22:42:24 +0400 |
| commit | 2405e8f64c14a2cc9967f1f9bbeb1ba48b6cc2a1 (patch) | |
| tree | b90594ff4db31c3d5cd16c6b626b307a2552fc56 /drivers | |
| parent | 40b92cad5efb9a03cff2f01dc96532e1a6bffa14 (diff) | |
| download | linux-2405e8f64c14a2cc9967f1f9bbeb1ba48b6cc2a1.tar.xz | |
net: sxgbe: fix potential null dereference
This fixes following:
drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c:1828 sxgbe_hw_init()
error: potential null dereference 'priv->hw'. (kmalloc returns null)
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Byungho An <bh74.an@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c index ee1fd3c4568f..a72688e8dc6c 100644 --- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c +++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c @@ -2039,11 +2039,13 @@ static void sxgbe_get_ops(struct sxgbe_ops * const ops_ptr) * Description: this function checks the HW capability * (if supported) and sets the driver's features. */ -static void sxgbe_hw_init(struct sxgbe_priv_data * const priv) +static int sxgbe_hw_init(struct sxgbe_priv_data * const priv) { u32 ctrl_ids; priv->hw = kmalloc(sizeof(*priv->hw), GFP_KERNEL); + if(!priv->hw) + return -ENOMEM; /* get the hardware ops */ sxgbe_get_ops(priv->hw); @@ -2064,6 +2066,8 @@ static void sxgbe_hw_init(struct sxgbe_priv_data * const priv) if (priv->hw_cap.rx_csum_offload) pr_info("RX Checksum offload supported\n"); + + return 0; } /** @@ -2102,7 +2106,9 @@ struct sxgbe_priv_data *sxgbe_drv_probe(struct device *device, sxgbe_verify_args(); /* Init MAC and get the capabilities */ - sxgbe_hw_init(priv); + ret = sxgbe_hw_init(priv); + if (ret) + goto error_free_netdev; /* allocate memory resources for Descriptor rings */ ret = txring_mem_alloc(priv); |