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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 /drivers
parent06cf7d3c7af902939cd1754abcafb2464060cba8 (diff)
downloadlinux-8517934ef6aaa28d6e055b98df65b31cedbd1372.tar.gz
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>
Diffstat (limited to 'drivers')
-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 ab84f99f1369..bd1af3e9e4ce 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) &&