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| author | David Milburn <dmilburn@redhat.com> | 2008-10-16 09:26:19 -0500 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2008-10-28 00:36:10 -0400 |
| commit | eb40963c835c69681af516388a2a92b57e2f0fe7 (patch) | |
| tree | 06cf541df117f772d48d2e8ebe00bc6e561f008c | |
| parent | e7c0d217cdaa837d30bc265eddac4d176969fd68 (diff) | |
| download | kernel_samsung_smdk4412-eb40963c835c69681af516388a2a92b57e2f0fe7.zip kernel_samsung_smdk4412-eb40963c835c69681af516388a2a92b57e2f0fe7.tar.gz kernel_samsung_smdk4412-eb40963c835c69681af516388a2a92b57e2f0fe7.tar.bz2 | |
libata: ahci enclosure management led sync
Synchronize ahci_sw_activity and ahci_sw_activity_blink with ata_port lock.
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| -rw-r--r-- | drivers/ata/ahci.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index 289719b..3c71d31 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1223,6 +1223,7 @@ static void ahci_sw_activity_blink(unsigned long arg) struct ahci_em_priv *emp = &pp->em_priv[link->pmp]; unsigned long led_message = emp->led_state; u32 activity_led_state; + unsigned long flags; led_message &= 0xffff0000; led_message |= ap->port_no | (link->pmp << 8); @@ -1231,6 +1232,7 @@ static void ahci_sw_activity_blink(unsigned long arg) * toggle state of LED and reset timer. If not, * turn LED to desired idle state. */ + spin_lock_irqsave(ap->lock, flags); if (emp->saved_activity != emp->activity) { emp->saved_activity = emp->activity; /* get the current LED state */ @@ -1253,6 +1255,7 @@ static void ahci_sw_activity_blink(unsigned long arg) if (emp->blink_policy == BLINK_OFF) led_message |= (1 << 16); } + spin_unlock_irqrestore(ap->lock, flags); ahci_transmit_led_message(ap, led_message, 4); } |