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authorAlexey Starikovskiy <astarikovskiy@suse.de>2008-11-11 12:54:11 +0300
committerLen Brown <len.brown@intel.com>2008-11-11 18:35:58 -0500
commit8517934ef6aaa28d6e055b98df65b31cedbd1372 (patch)
treedc3588e491f4b148f21d134788397a3b1376182d
parent06cf7d3c7af902939cd1754abcafb2464060cba8 (diff)
ACPI: EC: Don't do transaction from GPE handler in poll mode.
Referencies: http://bugzilla.kernel.org/show_bug.cgi?id=12004 Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
-rw-r--r--drivers/acpi/ec.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index ab84f99f136..bd1af3e9e4c 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -581,9 +581,12 @@ static u32 acpi_ec_gpe_handler(void *data)
pr_debug(PREFIX "~~~> interrupt\n");
status = acpi_ec_read_status(ec);
- gpe_transaction(ec, status);
- if (ec_transaction_done(ec) && (status & ACPI_EC_FLAG_IBF) == 0)
- wake_up(&ec->wait);
+ if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags)) {
+ gpe_transaction(ec, status);
+ if (ec_transaction_done(ec) &&
+ (status & ACPI_EC_FLAG_IBF) == 0)
+ wake_up(&ec->wait);
+ }
ec_check_sci(ec, status);
if (!test_bit(EC_FLAGS_GPE_MODE, &ec->flags) &&