ACPICA: Fixed possible corruption of global GPE list
Fixed a problem in acpi_ev_delete_gpe_xrupt where the global interrupt
list could be corrupted if the interrupt being removed was at
the head of the list. Reported by Linn Crosetto.
Signed-off-by: Bob Moore <[email protected]>
Signed-off-by: Len Brown <[email protected]>
Cc: Chuck Ebbert <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/acpi/events/evgpeblk.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
Index: 2.6/drivers/acpi/events/evgpeblk.c
===================================================================
--- 2.6.orig/drivers/acpi/events/evgpeblk.c
+++ 2.6/drivers/acpi/events/evgpeblk.c
@@ -586,6 +586,10 @@ acpi_ev_delete_gpe_xrupt(struct acpi_gpe
flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
if (gpe_xrupt->previous) {
gpe_xrupt->previous->next = gpe_xrupt->next;
+ } else {
+ /* No previous, update list head */
+
+ acpi_gbl_gpe_xrupt_list_head = gpe_xrupt->next;
}
if (gpe_xrupt->next) {
--
-
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