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IXP4xx: Fix qmgr_release_queue() flushing unexpected queue entries. 

Queues should be empty when released, if not, there is a safety valve.
Make sure the queue is usable after it triggers.

Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
This commit is contained in:
Krzysztof Hałasa 2010-05-03 23:22:06 +02:00
parent ebf53826e1
commit 3c3a3b4c12
1 changed files with 5 additions and 4 deletions
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9
arch/arm/mach-ixp4xx/ixp4xx_qmgr.c
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@ -265,6 +265,11 @@ void qmgr_release_queue(unsigned int queue)
qmgr_queue_descs[queue], queue);
qmgr_queue_descs[queue][0] = '\x0';
#endif
while ((addr = qmgr_get_entry(queue)))
printk(KERN_ERR "qmgr: released queue %i not empty: 0x%08X\n",
queue, addr);
__raw_writel(0, &qmgr_regs->sram[queue]);
used_sram_bitmap[0] &= ~mask[0];
@ -275,10 +280,6 @@ void qmgr_release_queue(unsigned int queue)
spin_unlock_irq(&qmgr_lock);
module_put(THIS_MODULE);
while ((addr = qmgr_get_entry(queue)))
printk(KERN_ERR "qmgr: released queue %i not empty: 0x%08X\n",
queue, addr);
}
static int qmgr_init(void)