Commit 208f2a88 authored Mar 20, 2009 by David Milburn Committed by Jeff Garzik Mar 24, 2009

[libata] ahci: correct enclosure LED state save



ahci_transmit_led_message saves off the led_state
with a value that includes the port number OR'd
in, this incorrect value maybe reported back
in ahci_led_store.

For instance, if you turn off all the leds for
port 1 and cat the value back it will report 1
instead of 0.

# echo 0 > /sys/class/scsi_host/host1/em_message
# cat /sys/class/scsi_host/host1/em_message
1

Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

parent e18086d6

drivers/ata/ahci.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1348,7 +1348,7 @@ static ssize_t ahci_transmit_led_message(struct ata_port *ap, u32 state,
		writel(message[1], mmio + hpriv->em_loc+4);

		/* save off new led state for port/slot */
		emp->led_state = message[1];
		emp->led_state = state;

		/*
		* tell hardware to transmit the message