From a92fda194d31d26c1fecd191a03d2dbc5b6ac230 Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@nokia.com>
Date: Thu, 29 Jan 2009 08:57:12 -0800
Subject: [PATCH] ARM: OMAP: DMA: Fix uninitialized channel flags
This has similar symptoms than 66c23551b1b774e2be3c7bdf91c0ebf2c7a3519e
where just omap_request_dma, omap_dma_link_lch and omap_dma_unlink_lch
can cause incorrect dump_stack(). Here it can happen if channel has been
used before and the channel flags variable holds old status.
Signed-off-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
arch/arm/plat-omap/dma.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index bec8e363d545f..47ec77af4ccbe 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -709,6 +709,7 @@ int omap_request_dma(int dev_id, const char *dev_name,
chan->dev_name = dev_name;
chan->callback = callback;
chan->data = data;
+ chan->flags = 0;
#ifndef CONFIG_ARCH_OMAP1
if (cpu_class_is_omap2()) {
--
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