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* [PATCH] input: synaptics-rmi4: check for non zero version logically dead code
@ 2016-12-20  9:56 Colin King
  2017-01-02  9:03 ` Benjamin Tissoires
  0 siblings, 1 reply; 2+ messages in thread
From: Colin King @ 2016-12-20  9:56 UTC (permalink / raw)
  To: Dmitry Torokhov, Nick Dyer, Benjamin Tissoires, linux-input; +Cc: linux-kernel

From: Colin Ian King <colin.king@canonical.com>

version is a u8, the check for version > 0 means that version can only
be zero, so the subsequent check for version != 0 is never true and
hence is redudant code and can be removed.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/input/rmi4/rmi_f34.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/input/rmi4/rmi_f34.c b/drivers/input/rmi4/rmi_f34.c
index 9774dfb..c3285ce 100644
--- a/drivers/input/rmi4/rmi_f34.c
+++ b/drivers/input/rmi4/rmi_f34.c
@@ -441,8 +441,6 @@ static int rmi_f34_probe(struct rmi_function *fn)
 	/* v5 code only supported version 0, try V7 probe */
 	if (version > 0)
 		return rmi_f34v7_probe(f34);
-	else if (version != 0)
-		return -ENODEV;
 
 	f34->bl_version = 5;
 
-- 
2.10.2

^ permalink raw reply related	[flat|nested] 2+ messages in thread

* Re: [PATCH] input: synaptics-rmi4: check for non zero version logically dead code
  2016-12-20  9:56 [PATCH] input: synaptics-rmi4: check for non zero version logically dead code Colin King
@ 2017-01-02  9:03 ` Benjamin Tissoires
  0 siblings, 0 replies; 2+ messages in thread
From: Benjamin Tissoires @ 2017-01-02  9:03 UTC (permalink / raw)
  To: Colin King; +Cc: Dmitry Torokhov, Nick Dyer, linux-input, linux-kernel

On Dec 20 2016 or thereabouts, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> version is a u8, the check for version > 0 means that version can only
> be zero, so the subsequent check for version != 0 is never true and
> hence is redudant code and can be removed.
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---

Works for me:
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

>  drivers/input/rmi4/rmi_f34.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/input/rmi4/rmi_f34.c b/drivers/input/rmi4/rmi_f34.c
> index 9774dfb..c3285ce 100644
> --- a/drivers/input/rmi4/rmi_f34.c
> +++ b/drivers/input/rmi4/rmi_f34.c
> @@ -441,8 +441,6 @@ static int rmi_f34_probe(struct rmi_function *fn)
>  	/* v5 code only supported version 0, try V7 probe */
>  	if (version > 0)
>  		return rmi_f34v7_probe(f34);
> -	else if (version != 0)
> -		return -ENODEV;
>  
>  	f34->bl_version = 5;
>  
> -- 
> 2.10.2
> 

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2016-12-20  9:56 [PATCH] input: synaptics-rmi4: check for non zero version logically dead code Colin King
2017-01-02  9:03 ` Benjamin Tissoires

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