[ARM] dma: ensure that the single entry sg is properly initialized (d667522f) · Commits · e / devices / android_kernel_fairphone_FP5

arch/arm/kernel/dma.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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;