From: elfring@users.sourceforge.net (SF Markus Elfring)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 15/24] ste_dma40: Move two assignments in d40_prep_sg()
Date: Sat, 17 Sep 2016 17:25:52 +0200 [thread overview]
Message-ID: <820bf972-3613-cf77-d243-9ba480c4c9e0@users.sourceforge.net> (raw)
In-Reply-To: <92810066-69b6-94e7-dcec-a28594b1328f@users.sourceforge.net>
From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 17 Sep 2016 15:40:05 +0200
Move assignments for two local variables so that their setting
will only be performed after corresponding data processing succeeded
by this function.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
drivers/dma/ste_dma40.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index a7e7cd0..6725b66 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -2236,8 +2236,8 @@ d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src,
enum dma_transfer_direction direction, unsigned long dma_flags)
{
struct d40_chan *chan = container_of(dchan, struct d40_chan, chan);
- dma_addr_t src_dev_addr = 0;
- dma_addr_t dst_dev_addr = 0;
+ dma_addr_t src_dev_addr;
+ dma_addr_t dst_dev_addr;
struct d40_desc *desc;
unsigned long flags;
int ret;
@@ -2256,6 +2256,8 @@ d40_prep_sg(struct dma_chan *dchan, struct scatterlist *sg_src,
if (sg_next(&sg_src[sg_len - 1]) == sg_src)
desc->cyclic = true;
+ src_dev_addr = 0;
+ dst_dev_addr = 0;
if (direction == DMA_DEV_TO_MEM)
src_dev_addr = chan->runtime_addr;
else if (direction == DMA_MEM_TO_DEV)
--
2.10.0
next prev parent reply other threads:[~2016-09-17 15:25 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <566ABCD9.1060404@users.sourceforge.net>
2015-12-31 21:47 ` [PATCH] net-thunder: One check less in nicvf_register_interrupts() after error detection SF Markus Elfring
2016-01-07 11:07 ` Robert Richter
2016-01-07 19:30 ` SF Markus Elfring
2016-01-07 19:44 ` Joe Perches
2016-01-07 19:56 ` SF Markus Elfring
2016-01-07 19:59 ` Joe Perches
2016-01-07 20:07 ` SF Markus Elfring
2016-01-07 20:28 ` Joe Perches
2016-01-07 20:38 ` SF Markus Elfring
2016-01-07 20:42 ` Joe Perches
2016-09-17 15:05 ` [PATCH 00/24] ste_dma40: Fine-tuning for several function implementations SF Markus Elfring
2016-09-17 15:07 ` [PATCH 01/24] ste_dma40: Use kmalloc_array() in d40_lcla_allocate() SF Markus Elfring
2016-09-17 15:08 ` [PATCH 02/24] ste_dma40: Return directly after a failed kmalloc_array() SF Markus Elfring
2016-09-17 15:09 ` [PATCH 03/24] ste_dma40: Rename a jump label in d40_lcla_allocate() SF Markus Elfring
2016-09-17 15:10 ` [PATCH 04/24] ste_dma40: Move an assignment " SF Markus Elfring
2016-09-17 15:11 ` [PATCH 05/24] ste_dma40: Improve a size determination in d40_of_probe() SF Markus Elfring
2016-09-17 15:12 ` [PATCH 06/24] ste_dma40: Replace four kzalloc() calls by kcalloc() in d40_hw_detect_init() SF Markus Elfring
2016-09-17 15:15 ` [PATCH 07/24] ste_dma40: Use kmalloc_array() " SF Markus Elfring
2016-09-17 15:16 ` [PATCH 08/24] ste_dma40: Less checks in d40_hw_detect_init() after error detection SF Markus Elfring
2016-09-17 15:17 ` [PATCH 09/24] ste_dma40: Delete unnecessary variable initialisations in d40_hw_detect_init() SF Markus Elfring
2016-09-17 15:18 ` [PATCH 10/24] ste_dma40: Adjust the position of a jump label in d40_probe() SF Markus Elfring
2016-09-17 15:19 ` [PATCH 11/24] ste_dma40: Rename " SF Markus Elfring
2016-09-17 15:20 ` [PATCH 12/24] ste_dma40: Rename jump labels in d40_dmaengine_init() SF Markus Elfring
2016-09-17 15:22 ` [PATCH 13/24] ste_dma40: Rename a jump label in d40_alloc_chan_resources() SF Markus Elfring
2016-09-17 15:23 ` [PATCH 14/24] ste_dma40: One check less in d40_prep_sg() after error detection SF Markus Elfring
2016-09-17 15:25 ` SF Markus Elfring [this message]
2016-09-17 15:26 ` [PATCH 16/24] ste_dma40: Rename a jump label in d40_prep_desc() SF Markus Elfring
2016-09-17 15:27 ` [PATCH 17/24] ste_dma40: Move an assignment " SF Markus Elfring
2016-09-17 15:30 ` [PATCH 18/24] ste_dma40: Rename a jump label in d40_is_paused() SF Markus Elfring
2016-09-17 15:31 ` [PATCH 19/24] ste_dma40: Rename a jump label in d40_free_dma() SF Markus Elfring
2016-09-17 15:32 ` [PATCH 20/24] ste_dma40: Rename a jump label in d40_alloc_mask_free() SF Markus Elfring
2016-09-17 15:33 ` [PATCH 21/24] ste_dma40: Rename jump labels in d40_alloc_mask_set() SF Markus Elfring
2016-09-17 15:34 ` [PATCH 22/24] ste_dma40: Rename a jump label in dma_tasklet() SF Markus Elfring
2016-09-17 15:35 ` [PATCH 23/24] ste_dma40: Rename a jump label in __d40_execute_command_phy() SF Markus Elfring
2016-09-17 15:36 ` [PATCH 24/24] ste_dma40: Rename a jump label in d40_log_lli_to_lcxa() SF Markus Elfring
2016-09-23 9:41 ` [PATCH 00/24] ste_dma40: Fine-tuning for several function implementations Linus Walleij
2016-09-26 17:39 ` Vinod Koul
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