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| author | Michal Schmidt <mschmidt@redhat.com> | 2010-06-24 04:13:44 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-26 22:10:04 -0700 |
| commit | cc413d9097dfc6237f37dcaf52346db1061a6119 (patch) | |
| tree | cc85bed1040342b75785fc85fcb013ae0d0e0595 | |
| parent | 1b4843c5e8cbab86830da8a53b8288882060c059 (diff) | |
| download | linux-3.10-cc413d9097dfc6237f37dcaf52346db1061a6119.tar.gz linux-3.10-cc413d9097dfc6237f37dcaf52346db1061a6119.tar.bz2 linux-3.10-cc413d9097dfc6237f37dcaf52346db1061a6119.zip | |
vxge: fix memory leak in vxge_alloc_msix() error path
When pci_enable_msix() returned ret<0, entries and vxge_entries were leaked.
While at it, use the centralized exit idiom in the function.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Ram Vepa <ram.vepa@exar.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/vxge/vxge-main.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/drivers/net/vxge/vxge-main.c b/drivers/net/vxge/vxge-main.c index b504bd56136..d14e207de1d 100644 --- a/drivers/net/vxge/vxge-main.c +++ b/drivers/net/vxge/vxge-main.c @@ -2262,7 +2262,8 @@ start: vxge_debug_init(VXGE_ERR, "%s: memory allocation failed", VXGE_DRIVER_NAME); - return -ENOMEM; + ret = -ENOMEM; + goto alloc_entries_failed; } vdev->vxge_entries = @@ -2271,8 +2272,8 @@ start: if (!vdev->vxge_entries) { vxge_debug_init(VXGE_ERR, "%s: memory allocation failed", VXGE_DRIVER_NAME); - kfree(vdev->entries); - return -ENOMEM; + ret = -ENOMEM; + goto alloc_vxge_entries_failed; } for (i = 0, j = 0; i < vdev->no_of_vpath; i++) { @@ -2303,22 +2304,32 @@ start: vxge_debug_init(VXGE_ERR, "%s: MSI-X enable failed for %d vectors, ret: %d", VXGE_DRIVER_NAME, vdev->intr_cnt, ret); + if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) { + ret = -ENODEV; + goto enable_msix_failed; + } + kfree(vdev->entries); kfree(vdev->vxge_entries); vdev->entries = NULL; vdev->vxge_entries = NULL; - - if ((max_config_vpath != VXGE_USE_DEFAULT) || (ret < 3)) - return -ENODEV; /* Try with less no of vector by reducing no of vpaths count */ temp = (ret - 1)/2; vxge_close_vpaths(vdev, temp); vdev->no_of_vpath = temp; goto start; - } else if (ret < 0) - return -ENODEV; - + } else if (ret < 0) { + ret = -ENODEV; + goto enable_msix_failed; + } return 0; + +enable_msix_failed: + kfree(vdev->vxge_entries); +alloc_vxge_entries_failed: + kfree(vdev->entries); +alloc_entries_failed: + return ret; } static int vxge_enable_msix(struct vxgedev *vdev) |