replace twl4030-gpio irq_chip

[linux-2.6-omap-h63xx.git] / drivers / acpi / sbshc.c

diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index a2cf3008ce6c03eb40ad564d3063700896a68d03..a4e3767b8c64241c6bd1c11010f0c2001fd7e7c1 100644 (file)
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -107,6 +107,13 @@ static int wait_transaction_complete(struct acpi_smb_hc *hc, int timeout)
        if (wait_event_timeout(hc->wait, smb_check_done(hc),
                               msecs_to_jiffies(timeout)))
                return 0;
+       /*
+        * After the timeout happens, OS will try to check the status of SMbus.
+        * If the status is what OS expected, it will be regarded as the bogus
+        * timeout.
+        */
+       if (smb_check_done(hc))
+               return 0;
        else
                return -ETIME;
 }
@@ -130,7 +137,6 @@ static int acpi_smbus_transaction(struct acpi_smb_hc *hc, u8 protocol,
                goto end;
        }
        smb_hc_write(hc, ACPI_SMB_COMMAND, command);
-       smb_hc_write(hc, ACPI_SMB_COMMAND, command);
        if (!(protocol & 0x01)) {
                smb_hc_write(hc, ACPI_SMB_BLOCK_COUNT, length);
                for (i = 0; i < length; ++i)