[ARM] dma: ensure that the single entry sg is properly initialized

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
git-mirror · Dec 11, 2008 · d667522 · d667522
1 parent 8c56afc
commit d667522
Showing 1 changed file with 4 additions and 0 deletions.
diff --git 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;