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| author | Bob Moore <robert.moore@intel.com> | 2007-08-15 14:58:15 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-08-22 16:23:25 -0700 |
| commit | aa14abcf24054c3ec8217593e05cf96c70801bcd (patch) | |
| tree | 4456580ab21527929b9a1c8708dbda7bfbbf9ead | |
| parent | e9561ddc92d0cb00aa69521716ee29904bf5bf14 (diff) | |
| download | lwn-aa14abcf24054c3ec8217593e05cf96c70801bcd.tar.gz lwn-aa14abcf24054c3ec8217593e05cf96c70801bcd.zip | |
ACPICA: Fixed possible corruption of global GPE list
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 <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/acpi/events/evgpeblk.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/acpi/events/evgpeblk.c b/drivers/acpi/events/evgpeblk.c index 902c287b3a4f..361ebe6c4a6f 100644 --- a/drivers/acpi/events/evgpeblk.c +++ b/drivers/acpi/events/evgpeblk.c @@ -586,6 +586,10 @@ acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt) 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) { |