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| author | Lucas Tanure <tanure@linux.com> | 2016-01-25 19:30:23 -0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2016-01-26 11:38:53 +0100 |
| commit | 07905298e4d5777eb58516cdc242f7ac1ca387a2 (patch) | |
| tree | bd97b0dc55b987fa1b1b4d823ab95253020dfdf5 /sound | |
| parent | 5a4ff9ec8d6edd2ab1cfe8ce6a080d6e57cbea9a (diff) | |
| download | lwn-07905298e4d5777eb58516cdc242f7ac1ca387a2.tar.gz lwn-07905298e4d5777eb58516cdc242f7ac1ca387a2.zip | |
ALSA: bebob: Use a signed return type for get_formation_index
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.
[Fix the missing braces suggested by Julia Lawall -- tiwai]
Signed-off-by: Lucas Tanure <tanure@linux.com>
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Tested-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/firewire/bebob/bebob_stream.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/sound/firewire/bebob/bebob_stream.c b/sound/firewire/bebob/bebob_stream.c index 926e5dcbb66a..5022c9b97ddf 100644 --- a/sound/firewire/bebob/bebob_stream.c +++ b/sound/firewire/bebob/bebob_stream.c @@ -47,14 +47,16 @@ 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; + if (snd_bebob_rate_table[i] == rate) { + *index = i; + return 0; + } } return -EINVAL; } @@ -425,7 +427,9 @@ 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, |