From: Krzysztof Hałasa Date: Mon, 3 May 2010 21:22:06 +0000 (+0200) Subject: IXP4xx: Fix qmgr_release_queue() flushing unexpected queue entries. X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3c3a3b4c12bdda8dd098fcdd4499a298548d6f31;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git 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 --- diff --git a/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c index bfdbe4b5a3cc..852f7c9f87d0 100644 --- a/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c +++ b/arch/arm/mach-ixp4xx/ixp4xx_qmgr.c @@ -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)