[PATCH net] bnx2x: avoid leaking memory on bnx2x_init_one() failures

[Vitaly Kuznetsov]

bnx2x_init_bp() allocates memory with bnx2x_alloc_mem_bp() so if we
fail later in bnx2x_init_one() we need to free this memory
with bnx2x_free_mem_bp() to avoid leakages. E.g. I'm observing memory
leaks reported by kmemleak when a failure (unrelated) happens in
bnx2x_vfpf_acquire().

Signed-off-by: Vitaly Kuznetsov <vkuzn...@redhat.com>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c 
b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 0a5b770..c5fe9158 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -13941,14 +13941,14 @@ static int bnx2x_init_one(struct pci_dev *pdev,
                bp->doorbells = bnx2x_vf_doorbells(bp);
                rc = bnx2x_vf_pci_alloc(bp);
                if (rc)
-                       goto init_one_exit;
+                       goto init_one_freemem;
        } else {
                doorbell_size = BNX2X_L2_MAX_CID(bp) * (1 << BNX2X_DB_SHIFT);
                if (doorbell_size > pci_resource_len(pdev, 2)) {
                        dev_err(&bp->pdev->dev,
                                "Cannot map doorbells, bar size too small, 
aborting\n");
                        rc = -ENOMEM;
-                       goto init_one_exit;
+                       goto init_one_freemem;
                }
                bp->doorbells = ioremap_nocache(pci_resource_start(pdev, 2),
                                                doorbell_size);
@@ -13957,19 +13957,19 @@ static int bnx2x_init_one(struct pci_dev *pdev,
                dev_err(&bp->pdev->dev,
                        "Cannot map doorbell space, aborting\n");
                rc = -ENOMEM;
-               goto init_one_exit;
+               goto init_one_freemem;
        }
 
        if (IS_VF(bp)) {
                rc = bnx2x_vfpf_acquire(bp, tx_count, rx_count);
                if (rc)
-                       goto init_one_exit;
+                       goto init_one_freemem;
        }
 
        /* Enable SRIOV if capability found in configuration space */
        rc = bnx2x_iov_init_one(bp, int_mode, BNX2X_MAX_NUM_OF_VFS);
        if (rc)
-               goto init_one_exit;
+               goto init_one_freemem;
 
        /* calc qm_cid_count */
        bp->qm_cid_count = bnx2x_set_qm_cid_count(bp);
@@ -13988,7 +13988,7 @@ static int bnx2x_init_one(struct pci_dev *pdev,
        rc = bnx2x_set_int_mode(bp);
        if (rc) {
                dev_err(&pdev->dev, "Cannot set interrupts\n");
-               goto init_one_exit;
+               goto init_one_freemem;
        }
        BNX2X_DEV_INFO("set interrupts successfully\n");
 
@@ -13996,7 +13996,7 @@ static int bnx2x_init_one(struct pci_dev *pdev,
        rc = register_netdev(dev);
        if (rc) {
                dev_err(&pdev->dev, "Cannot register net device\n");
-               goto init_one_exit;
+               goto init_one_freemem;
        }
        BNX2X_DEV_INFO("device name after netdev register %s\n", dev->name);
 
@@ -14029,6 +14029,9 @@ static int bnx2x_init_one(struct pci_dev *pdev,
 
        return 0;
 
+init_one_freemem:
+       bnx2x_free_mem_bp(bp);
+
 init_one_exit:
        bnx2x_disable_pcie_error_reporting(bp);
 
-- 
2.5.5