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[PATCH] sata_mv: fix irq port status usage

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Interrupt handler did not properly initialize a variable on a per-port
basis, leading to incorrect behavior on ports other than port 0.

Bug caught and fixed by Mark Lord.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jeff Garzik
2006-03-20 19:57:57 -05:00
committed by Greg Kroah-Hartman
parent 7705a8792b
commit 1dd6f008de
1 changed files with 1 additions and 1 deletions
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drivers/scsi/sata_mv.c
+1 -1
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@@ -1192,7 +1192,6 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
u32 hc_irq_cause;
int shift, port, port0, hard_port, handled;
unsigned int err_mask;
u8 ata_status = 0;
if (hc == 0) {
port0 = 0;
@@ -1210,6 +1209,7 @@ static void mv_host_intr(struct ata_host_set *host_set, u32 relevant,
hc,relevant,hc_irq_cause);
for (port = port0; port < port0 + MV_PORTS_PER_HC; port++) {
u8 ata_status = 0;
ap = host_set->ports[port];
hard_port = port & MV_PORT_MASK; /* range 0-3 */
handled = 0; /* ensure ata_status is set if handled++ */