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Subject[PATCH v2 10/34] [media] DaVinci-VPBE: Check return value of a setup_if_config() call in vpbe_set_output()
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From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sun, 6 Nov 2016 20:40:20 +0100

* A function was called over the pointer "setup_if_config" in the data
structure "venc_platform_data". But the return value was not used so far.
Thus assign it to the local variable "ret" which will be checked with
the next statement.

Fixes: 9a7f95ad1c946efdd7a7a72df27db738260a0fd8 ("[media] davinci vpbe: add dm365 VPBE display driver changes")

* Pass a value to this function call without storing it in an intermediate
variable before.

* Delete the local variable "if_params" which became unnecessary with
this refactoring.

Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---

v2: Keep the assignment statement on one line despite of its length
of 82 characters.

drivers/media/platform/davinci/vpbe.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/platform/davinci/vpbe.c b/drivers/media/platform/davinci/vpbe.c
index 19611a2..d04d6b7 100644
--- a/drivers/media/platform/davinci/vpbe.c
+++ b/drivers/media/platform/davinci/vpbe.c
@@ -227,7 +227,6 @@ static int vpbe_set_output(struct vpbe_device *vpbe_dev, int index)
vpbe_current_encoder_info(vpbe_dev);
struct vpbe_config *cfg = vpbe_dev->cfg;
struct venc_platform_data *venc_device = vpbe_dev->venc_device;
- u32 if_params;
int enc_out_index;
int sd_index;
int ret = 0;
@@ -257,5 +257,4 @@ static int vpbe_set_output(struct vpbe_device *vpbe_dev, int index)
}

- if_params = cfg->outputs[index].if_params;
- venc_device->setup_if_config(if_params);
+ ret = venc_device->setup_if_config(cfg->outputs[index].if_params);
if (ret)
--
2.10.2
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