diff options
| author | Alexey Starikovskiy <astarikovskiy@suse.de> | 2008-11-03 20:26:40 +0100 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-11-07 20:45:00 +0100 |
| commit | d21cf3c16b1191f3154a51e0b20c82bf851cc553 (patch) | |
| tree | 8b70490cff2ac98f1106c61f342aef6c0db544a3 /drivers/acpi/ec.c | |
| parent | Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/... (diff) | |
| download | linux-d21cf3c16b1191f3154a51e0b20c82bf851cc553.tar.xz linux-d21cf3c16b1191f3154a51e0b20c82bf851cc553.zip | |
ACPI EC: Fix regression due to use of uninitialized variable
breakage introduced by following patch
commit 27663c5855b10af9ec67bc7dfba001426ba21222
Author: Matthew Wilcox <willy@linux.intel.com>
Date: Fri Oct 10 02:22:59 2008 -0400
acpi_evaluate_integer() does not clear passed variable if
there is an error at evaluation.
So if we ignore error, we must supply initialized variable.
http://bugzilla.kernel.org/show_bug.cgi?id=11917
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Tested-by: Alan Jenkins <alan-jenkins@tuffmail.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/ec.c')
| -rw-r--r-- | drivers/acpi/ec.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index ef42316f89f5..523ac5b229a5 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -736,7 +736,7 @@ static acpi_status ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval) { acpi_status status; - unsigned long long tmp; + unsigned long long tmp = 0; struct acpi_ec *ec = context; status = acpi_walk_resources(handle, METHOD_NAME__CRS, @@ -751,6 +751,7 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval) return status; ec->gpe = tmp; /* Use the global lock for all EC transactions? */ + tmp = 0; acpi_evaluate_integer(handle, "_GLK", NULL, &tmp); ec->global_lock = tmp; ec->handle = handle; |