From f477f5b3316f39c841aa121a219b82b3a56e7da7 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Mon, 21 Sep 2009 09:17:58 -0700
Subject: drivers/dma/ioat/dma_v2.c: fix warnings

drivers/dma/ioat/dma_v2.c: In function 'ioat2_dma_prep_memcpy_lock':
drivers/dma/ioat/dma_v2.c:680: warning: 'hw' may be used uninitialized in this function
drivers/dma/ioat/dma_v2.c:681: warning: 'desc' may be used uninitialized in this function

Cc: Maciej Sosnowski <maciej.sosnowski@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/ioat/dma_v2.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'drivers/dma')

diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index 8fd0b59f190..96ffab7d37a 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -692,7 +692,8 @@ ioat2_dma_prep_memcpy_lock(struct dma_chan *c, dma_addr_t dma_dest,
 		/* pass */;
 	else
 		return NULL;
-	for (i = 0; i < num_descs; i++) {
+	i = 0;
+	do {
 		size_t copy = min_t(size_t, len, 1 << ioat->xfercap_log);
 
 		desc = ioat2_get_ring_ent(ioat, idx + i);
@@ -707,7 +708,7 @@ ioat2_dma_prep_memcpy_lock(struct dma_chan *c, dma_addr_t dma_dest,
 		dst += copy;
 		src += copy;
 		dump_desc_dbg(ioat, desc);
-	}
+	} while (++i < num_descs);
 
 	desc->txd.flags = flags;
 	desc->len = total_len;
-- 
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