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[Qemu-devel] [PATCH v2 1/2] lsi: Purge request queue on soft reset
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] [PATCH v2 1/2] lsi: Purge request queue on soft reset |
Date: |
Fri, 30 Apr 2010 14:06:12 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 |
Avoid keeping zombie requests across controller reset by purging the
queue and also dropping the currently active request.
Signed-off-by: Jan Kiszka <address@hidden>
---
hw/lsi53c895a.c | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/hw/lsi53c895a.c b/hw/lsi53c895a.c
index 98b7f54..ad23ece 100644
--- a/hw/lsi53c895a.c
+++ b/hw/lsi53c895a.c
@@ -283,6 +283,8 @@ static inline int lsi_irq_on_rsl(LSIState *s)
static void lsi_soft_reset(LSIState *s)
{
+ lsi_request *p;
+
DPRINTF("Reset\n");
s->carry = 0;
@@ -345,6 +347,15 @@ static void lsi_soft_reset(LSIState *s)
s->sbc = 0;
s->csbc = 0;
s->sbr = 0;
+ while (!QTAILQ_EMPTY(&s->queue)) {
+ p = QTAILQ_FIRST(&s->queue);
+ QTAILQ_REMOVE(&s->queue, p, next);
+ qemu_free(p);
+ }
+ if (s->current) {
+ qemu_free(s->current);
+ s->current = NULL;
+ }
}
static int lsi_dma_40bit(LSIState *s)
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