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[ARM] dma: ensure that the single entry sg is properly initialized
author
Russell King
<rmk@dyn-67.arm.linux.org.uk>
Mon, 8 Dec 2008 17:50:25 +0000
(17:50 +0000)
committer
Russell King
<rmk+kernel@arm.linux.org.uk>
Thu, 11 Dec 2008 14:52:42 +0000
(14:52 +0000)
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
arch/arm/kernel/dma.c
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diff --git
a/arch/arm/kernel/dma.c
b/arch/arm/kernel/dma.c
index aab24f03ea14ac6d00ead993aea6ac2e830862fa..e7828fcd9544d4ac05eaca20af114fb990ae76a9 100644
(file)
--- a/
arch/arm/kernel/dma.c
+++ b/
arch/arm/kernel/dma.c
@@
-15,6
+15,7
@@
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/errno.h>
+#include <linux/scatterlist.h>
#include <asm/dma.h>
@@
-37,6
+38,9
@@
int __init isa_dma_add(unsigned int chan, dma_t *dma)
{
if (!dma->d_ops)
return -EINVAL;
+
+ sg_init_table(&dma->buf, 1);
+
if (dma_chan[chan])
return -EBUSY;
dma_chan[chan] = dma;