From: Alexey Starikovskiy <astarikovskiy@suse.de>
Date: Mon, 22 Oct 2007 10:18:36 +0000 (+0400)
Subject: ACPI: EC: Don't expect interrupt after last read
X-Git-Tag: v2.6.24-rc2~92^2~3^2~14
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=0c5d31f48e54b2e56e9cef8d49ffedaef1e0ea52;p=linux-2.6-omap-h63xx.git

ACPI: EC: Don't expect interrupt after last read

There is no interrupt after last read according to spec, so
don't set bit that we are expecting one.

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 08fbe62a2db..5ce90ce22b5 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -228,7 +228,9 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
 			       command);
 			goto end;
 		}
-		set_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
+		/* Don't expect GPE after last read */
+		if (rdata_len > 1)
+			set_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
 		*(rdata++) = acpi_ec_read_data(ec);
 	}
       end: