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dmar: use list_for_each_entry_safe() in dmar_dev_scope_init()

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In dmar_dev_scope_init(), functions called under for_each_drhd_unit()/
for_each_rmrr_units() can delete the list entry under some error conditions.

So we should use list_for_each_entry_safe() for safe traversal.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Suresh Siddha 2008-09-03 16:58:34 -07:00 committed by Ingo Molnar
parent 74d04bd7dc
commit 04e2ea6706
1 changed files with 4 additions and 4 deletions
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8
drivers/pci/dmar.c
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@ -397,10 +397,10 @@ dmar_find_matched_drhd_unit(struct pci_dev *dev)
int __init dmar_dev_scope_init(void)
{
struct dmar_drhd_unit *drhd;
struct dmar_drhd_unit *drhd, *drhd_n;
int ret = -ENODEV;
for_each_drhd_unit(drhd) {
list_for_each_entry_safe(drhd, drhd_n, &dmar_drhd_units, list) {
ret = dmar_parse_dev(drhd);
if (ret)
return ret;
@ -408,8 +408,8 @@ int __init dmar_dev_scope_init(void)
#ifdef CONFIG_DMAR
{
struct dmar_rmrr_unit *rmrr;
for_each_rmrr_units(rmrr) {
struct dmar_rmrr_unit *rmrr, *rmrr_n;
list_for_each_entry_safe(rmrr, rmrr_n, &dmar_rmrr_units, list) {
ret = rmrr_parse_dev(rmrr);
if (ret)
return ret;