[next] ALSA: firewire-lib: remove redundant assignment to cip_header
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Message ID 20190524213351.24594-1-colin.king@canonical.com
State New
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  • [next] ALSA: firewire-lib: remove redundant assignment to cip_header
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Commit Message

Colin King May 24, 2019, 9:33 p.m. UTC
From: Colin Ian King <colin.king@canonical.com>

The assignement to cip_header is redundant as the value never
read and it is being re-assigned in the if and else paths of
the following if statement. Clean up the code by removing it.

Addresses-Coverity: ("Unused value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 sound/firewire/amdtp-stream.c | 1 -
 1 file changed, 1 deletion(-)

Comments

Takashi Sakamoto May 25, 2019, 5:45 a.m. UTC | #1
Hi Colin,

On Sat, May 25, 2019, at 06:35, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> The assignement to cip_header is redundant as the value never
> read and it is being re-assigned in the if and else paths of
> the following if statement. Clean up the code by removing it.
> 
> Addresses-Coverity: ("Unused value")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> ---
>  sound/firewire/amdtp-stream.c | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/sound/firewire/amdtp-stream.c 
> b/sound/firewire/amdtp-stream.c
> index 2d9c764061d1..4236955bbf57 100644
> --- a/sound/firewire/amdtp-stream.c
> +++ b/sound/firewire/amdtp-stream.c
> @@ -675,7 +675,6 @@ static int handle_in_packet(struct amdtp_stream *s, 
> unsigned int cycle,
>  		return -EIO;
>  	}
>  
> -	cip_header = ctx_header + 2;
>  	if (!(s->flags & CIP_NO_HEADER)) {
>  		cip_header = &ctx_header[2];
>  		err = check_cip_header(s, cip_header, payload_length,

Thanks for the fix. I've already posted further patch for refactoring
and this was also fixed by a commit 98e3e43b599d ("
ALSA: firewire-lib: refactoring to obsolete IR packet handler").

https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git/commit/?id=98e3e43b599d742c104864c6772a251025ffb52b

Thanks


Takashi Sakamoto

Patch
diff mbox series

diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c
index 2d9c764061d1..4236955bbf57 100644
--- a/sound/firewire/amdtp-stream.c
+++ b/sound/firewire/amdtp-stream.c
@@ -675,7 +675,6 @@  static int handle_in_packet(struct amdtp_stream *s, unsigned int cycle,
 		return -EIO;
 	}
 
-	cip_header = ctx_header + 2;
 	if (!(s->flags & CIP_NO_HEADER)) {
 		cip_header = &ctx_header[2];
 		err = check_cip_header(s, cip_header, payload_length,