From 913d910d70e641d2c753d45d98587640219a78bc Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Tue, 11 Nov 2008 12:54:11 +0300 Subject: [PATCH] ACPI: EC: Don't do transaction from GPE handler in poll mode. commit 8517934ef6aaa28d6e055b98df65b31cedbd1372 upstream. Referencies: http://bugzilla.kernel.org/show_bug.cgi?id=12004 Signed-off-by: Alexey Starikovskiy Signed-off-by: Len Brown Cc: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/ec.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 8fdbcbdebb55..41b8e7cad06e 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) && -- 2.39.5