src/patches/suse-2.6.27.31/patches.drivers/libata-ahci-correct-enclosure-LED-state-save

   1 From 208f2a886a2f6cf329c9fcbf8d29a0dd245cc763 Mon Sep 17 00:00:00 2001
   2 From: David Milburn <dmilburn@redhat.com>
   3 Date: Fri, 20 Mar 2009 14:14:23 -0500
   4 Subject: ahci: correct enclosure LED state save
   5 References: bnc#489005
   6
   7 ahci_transmit_led_message saves off the led_state
   8 with a value that includes the port number OR'd
   9 in, this incorrect value maybe reported back
  10 in ahci_led_store.
  11
  12 For instance, if you turn off all the leds for
  13 port 1 and cat the value back it will report 1
  14 instead of 0.
  15
  16 # echo 0 > /sys/class/scsi_host/host1/em_message
  17 # cat /sys/class/scsi_host/host1/em_message
  18 1
  19
  20 Signed-off-by: David Milburn <dmilburn@redhat.com>
  21 Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
  22 Signed-off-by: Tejun Heo <teheo@suse.de>
  23 ---
  24  drivers/ata/ahci.c |    2 +-
  25  1 file changed, 1 insertion(+), 1 deletion(-)
  26
  27 Index: linux-2.6.27-SLE11_BRANCH/drivers/ata/ahci.c
  28 ===================================================================
  29 --- linux-2.6.27-SLE11_BRANCH.orig/drivers/ata/ahci.c
  30 +++ linux-2.6.27-SLE11_BRANCH/drivers/ata/ahci.c
  31 @@ -1325,7 +1325,7 @@ static ssize_t ahci_transmit_led_message
  32         writel(message[1], mmio + hpriv->em_loc+4);
  33
  34         /* save off new led state for port/slot */
  35 -       emp->led_state = message[1];
  36 +       emp->led_state = state;
  37
  38         /*
  39          * tell hardware to transmit the message