* [PATCH] media: c8sectpfe: remove redundant assignment to pointer tsin
@ 2021-12-05 0:37 Colin Ian King
2021-12-07 9:35 ` Patrice CHOTARD
2021-12-07 12:44 ` Dan Carpenter
0 siblings, 2 replies; 3+ messages in thread
From: Colin Ian King @ 2021-12-05 0:37 UTC (permalink / raw)
To: Patrice Chotard, Mauro Carvalho Chehab, linux-arm-kernel, linux-media
Cc: kernel-janitors, linux-kernel
Pointer tsin is being assigned a value that is never read. The assignment
is redundant and can be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
index 02dc78bd7fab..e1f520903248 100644
--- a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
+++ b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
@@ -930,12 +930,8 @@ static int configure_channels(struct c8sectpfei *fei)
/* iterate round each tsin and configure memdma descriptor and IB hw */
for_each_child_of_node(np, child) {
-
- tsin = fei->channel_data[index];
-
ret = configure_memdma_and_inputblock(fei,
fei->channel_data[index]);
-
if (ret) {
dev_err(fei->dev,
"configure_memdma_and_inputblock failed\n");
--
2.33.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH] media: c8sectpfe: remove redundant assignment to pointer tsin
2021-12-05 0:37 [PATCH] media: c8sectpfe: remove redundant assignment to pointer tsin Colin Ian King
@ 2021-12-07 9:35 ` Patrice CHOTARD
2021-12-07 12:44 ` Dan Carpenter
1 sibling, 0 replies; 3+ messages in thread
From: Patrice CHOTARD @ 2021-12-07 9:35 UTC (permalink / raw)
To: Colin Ian King, Mauro Carvalho Chehab, linux-arm-kernel, linux-media
Cc: kernel-janitors, linux-kernel
Hi Colin
On 12/5/21 1:37 AM, Colin Ian King wrote:
> Pointer tsin is being assigned a value that is never read. The assignment
> is redundant and can be removed.
>
> Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
> ---
> drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
> index 02dc78bd7fab..e1f520903248 100644
> --- a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
> +++ b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
> @@ -930,12 +930,8 @@ static int configure_channels(struct c8sectpfei *fei)
>
> /* iterate round each tsin and configure memdma descriptor and IB hw */
> for_each_child_of_node(np, child) {
> -
> - tsin = fei->channel_data[index];
> -
> ret = configure_memdma_and_inputblock(fei,
> fei->channel_data[index]);
> -
> if (ret) {
> dev_err(fei->dev,
> "configure_memdma_and_inputblock failed\n");
>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Thanks
Patrice
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] media: c8sectpfe: remove redundant assignment to pointer tsin
2021-12-05 0:37 [PATCH] media: c8sectpfe: remove redundant assignment to pointer tsin Colin Ian King
2021-12-07 9:35 ` Patrice CHOTARD
@ 2021-12-07 12:44 ` Dan Carpenter
1 sibling, 0 replies; 3+ messages in thread
From: Dan Carpenter @ 2021-12-07 12:44 UTC (permalink / raw)
To: Colin Ian King
Cc: Patrice Chotard, Mauro Carvalho Chehab, linux-arm-kernel,
linux-media, kernel-janitors, linux-kernel
On Sun, Dec 05, 2021 at 12:37:45AM +0000, Colin Ian King wrote:
> Pointer tsin is being assigned a value that is never read. The assignment
> is redundant and can be removed.
>
> Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
> ---
> drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c | 4 ----
> 1 file changed, 4 deletions(-)
>
> diff --git a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
> index 02dc78bd7fab..e1f520903248 100644
> --- a/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
> +++ b/drivers/media/platform/sti/c8sectpfe/c8sectpfe-core.c
> @@ -930,12 +930,8 @@ static int configure_channels(struct c8sectpfei *fei)
>
> /* iterate round each tsin and configure memdma descriptor and IB hw */
> for_each_child_of_node(np, child) {
> -
> - tsin = fei->channel_data[index];
> -
> ret = configure_memdma_and_inputblock(fei,
> fei->channel_data[index]);
> -
> if (ret) {
> dev_err(fei->dev,
> "configure_memdma_and_inputblock failed\n");
This function is weird. So far as I can see instead of looping
for_each_child_of_node() it could just do:
for (i = 0; i < fei->tsin_count; i++) {
It's equivalent and simpler.
The error handling has a double free as well because
configure_memdma_and_inputblock() calls free_input_block() and the
goto err_unmap does too. It should be:
while (--i >= 0)
free_input_block(fei, fei->channel_data[i]);
I'll send a patch for this tomorrow.
regards,
dan carpenter
^ permalink raw reply [flat|nested] 3+ messages in thread
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2021-12-07 9:35 ` Patrice CHOTARD
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