From: Lucas Tanure <tanure@linux.com> To: Clemens Ladisch <clemens@ladisch.de>, Jaroslav Kysela <perex@perex.cz> Cc: linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org Subject: [PATCH] ALSA: bebob: Use a signed return type for get_formation_index Date: Mon, 25 Jan 2016 19:30:23 -0200 [thread overview] Message-ID: <1453757423-9076-1-git-send-email-tanure@linux.com> (raw) The return type "unsigned int" was used by the get_formation_index function despite of the aspect that it will eventually return a negative error code. So, change to signed int and get index by reference in the parameters. Done with the help of Coccinelle. Signed-off-by: Lucas Tanure <tanure@linux.com> --- sound/firewire/bebob/bebob_stream.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c index 926e5dc..79940e3 100644 --- a/sound/firewire/bebob/bebob_stream.c +++ b/sound/firewire/bebob/bebob_stream.c @@ -47,14 +47,15 @@ static const unsigned int bridgeco_freq_table[] = { [6] = 0x07, }; -static unsigned int -get_formation_index(unsigned int rate) +static int +get_formation_index(unsigned int rate, unsigned int *index) { unsigned int i; for (i = 0; i < ARRAY_SIZE(snd_bebob_rate_table); i++) { if (snd_bebob_rate_table[i] == rate) - return i; + *index = i; + return 0; } return -EINVAL; } @@ -425,7 +426,9 @@ make_both_connections(struct snd_bebob *bebob, unsigned int rate) goto end; /* confirm params for both streams */ - index = get_formation_index(rate); + err = get_formation_index(rate, &index); + if (err < 0) + goto end; pcm_channels = bebob->tx_stream_formations[index].pcm; midi_channels = bebob->tx_stream_formations[index].midi; err = amdtp_am824_set_parameters(&bebob->tx_stream, rate, -- 2.7.0
WARNING: multiple messages have this Message-ID (diff)
From: Lucas Tanure <tanure@linux.com> To: Clemens Ladisch <clemens@ladisch.de>, Jaroslav Kysela <perex@perex.cz> Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: [PATCH] ALSA: bebob: Use a signed return type for get_formation_index Date: Mon, 25 Jan 2016 19:30:23 -0200 [thread overview] Message-ID: <1453757423-9076-1-git-send-email-tanure@linux.com> (raw) The return type "unsigned int" was used by the get_formation_index function despite of the aspect that it will eventually return a negative error code. So, change to signed int and get index by reference in the parameters. Done with the help of Coccinelle. Signed-off-by: Lucas Tanure <tanure@linux.com> --- sound/firewire/bebob/bebob_stream.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c index 926e5dc..79940e3 100644 --- a/sound/firewire/bebob/bebob_stream.c +++ b/sound/firewire/bebob/bebob_stream.c @@ -47,14 +47,15 @@ static const unsigned int bridgeco_freq_table[] = { [6] = 0x07, }; -static unsigned int -get_formation_index(unsigned int rate) +static int +get_formation_index(unsigned int rate, unsigned int *index) { unsigned int i; for (i = 0; i < ARRAY_SIZE(snd_bebob_rate_table); i++) { if (snd_bebob_rate_table[i] == rate) - return i; + *index = i; + return 0; } return -EINVAL; } @@ -425,7 +426,9 @@ make_both_connections(struct snd_bebob *bebob, unsigned int rate) goto end; /* confirm params for both streams */ - index = get_formation_index(rate); + err = get_formation_index(rate, &index); + if (err < 0) + goto end; pcm_channels = bebob->tx_stream_formations[index].pcm; midi_channels = bebob->tx_stream_formations[index].midi; err = amdtp_am824_set_parameters(&bebob->tx_stream, rate, -- 2.7.0
next reply other threads:[~2016-01-25 21:30 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-01-25 21:30 Lucas Tanure [this message] 2016-01-25 21:30 ` [PATCH] ALSA: bebob: Use a signed return type for get_formation_index Lucas Tanure 2016-01-25 23:17 ` Takashi Sakamoto 2016-01-26 6:03 ` [alsa-devel] " Takashi Iwai
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