From f477f5b3316f39c841aa121a219b82b3a56e7da7 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Mon, 21 Sep 2009 09:17:58 -0700 Subject: [PATCH] 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 Signed-off-by: Andrew Morton Signed-off-by: Dan Williams --- drivers/dma/ioat/dma_v2.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) 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; -- 2.39.3