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>
diff --git a/drivers/net/vxge/vxge-main.c b/drivers/net/vxge/vxge-main.c
index b504bd5..d14e207 100644
--- a/drivers/net/vxge/vxge-main.c
+++ b/drivers/net/vxge/vxge-main.c
@@ -2262,7 +2262,8 @@
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 @@
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 @@
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)