vme: vme_ca91cx42.c: use list_for_each_safe() when delete list items
Since we will be removing items off the list using list_del() we need
to use a safer version of the list_for_each() macro aptly named
list_for_each_safe(). We should use the safe macro if the loop
involves deletions of items.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/vme/bridges/vme_ca91cx42.c b/drivers/vme/bridges/vme_ca91cx42.c
index e0df92e..1425d22c 100644
--- a/drivers/vme/bridges/vme_ca91cx42.c
+++ b/drivers/vme/bridges/vme_ca91cx42.c
@@ -1603,7 +1603,7 @@
{
int retval, i;
u32 data;
- struct list_head *pos = NULL;
+ struct list_head *pos = NULL, *n;
struct vme_bridge *ca91cx42_bridge;
struct ca91cx42_driver *ca91cx42_device;
struct vme_master_resource *master_image;
@@ -1821,28 +1821,28 @@
ca91cx42_crcsr_exit(ca91cx42_bridge, pdev);
err_lm:
/* resources are stored in link list */
- list_for_each(pos, &ca91cx42_bridge->lm_resources) {
+ list_for_each_safe(pos, n, &ca91cx42_bridge->lm_resources) {
lm = list_entry(pos, struct vme_lm_resource, list);
list_del(pos);
kfree(lm);
}
err_dma:
/* resources are stored in link list */
- list_for_each(pos, &ca91cx42_bridge->dma_resources) {
+ list_for_each_safe(pos, n, &ca91cx42_bridge->dma_resources) {
dma_ctrlr = list_entry(pos, struct vme_dma_resource, list);
list_del(pos);
kfree(dma_ctrlr);
}
err_slave:
/* resources are stored in link list */
- list_for_each(pos, &ca91cx42_bridge->slave_resources) {
+ list_for_each_safe(pos, n, &ca91cx42_bridge->slave_resources) {
slave_image = list_entry(pos, struct vme_slave_resource, list);
list_del(pos);
kfree(slave_image);
}
err_master:
/* resources are stored in link list */
- list_for_each(pos, &ca91cx42_bridge->master_resources) {
+ list_for_each_safe(pos, n, &ca91cx42_bridge->master_resources) {
master_image = list_entry(pos, struct vme_master_resource,
list);
list_del(pos);
@@ -1868,7 +1868,7 @@
static void ca91cx42_remove(struct pci_dev *pdev)
{
- struct list_head *pos = NULL;
+ struct list_head *pos = NULL, *n;
struct vme_master_resource *master_image;
struct vme_slave_resource *slave_image;
struct vme_dma_resource *dma_ctrlr;
@@ -1905,28 +1905,28 @@
ca91cx42_crcsr_exit(ca91cx42_bridge, pdev);
/* resources are stored in link list */
- list_for_each(pos, &ca91cx42_bridge->lm_resources) {
+ list_for_each_safe(pos, n, &ca91cx42_bridge->lm_resources) {
lm = list_entry(pos, struct vme_lm_resource, list);
list_del(pos);
kfree(lm);
}
/* resources are stored in link list */
- list_for_each(pos, &ca91cx42_bridge->dma_resources) {
+ list_for_each_safe(pos, n, &ca91cx42_bridge->dma_resources) {
dma_ctrlr = list_entry(pos, struct vme_dma_resource, list);
list_del(pos);
kfree(dma_ctrlr);
}
/* resources are stored in link list */
- list_for_each(pos, &ca91cx42_bridge->slave_resources) {
+ list_for_each_safe(pos, n, &ca91cx42_bridge->slave_resources) {
slave_image = list_entry(pos, struct vme_slave_resource, list);
list_del(pos);
kfree(slave_image);
}
/* resources are stored in link list */
- list_for_each(pos, &ca91cx42_bridge->master_resources) {
+ list_for_each_safe(pos, n, &ca91cx42_bridge->master_resources) {
master_image = list_entry(pos, struct vme_master_resource,
list);
list_del(pos);