[PATCH] ASoC: SOF: topology: Avoid open coded arithmetic in memory allocation
Use kcalloc() instead of kzalloc()+open coded multiplication. This is safer and saves a few lines of code.
Signed-off-by: Christophe JAILLET christophe.jaillet@wanadoo.fr --- sound/soc/sof/topology.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c index 369693cc6d10..8e9d8e079d68 100644 --- a/sound/soc/sof/topology.c +++ b/sound/soc/sof/topology.c @@ -1096,7 +1096,6 @@ static int sof_widget_parse_tokens(struct snd_soc_component *scomp, struct snd_s const struct sof_token_info *token_list = ipc_tplg_ops->token_list; struct snd_soc_tplg_private *private = &tw->priv; int num_tuples = 0; - size_t size; int ret, i;
if (count > 0 && !object_token_list) { @@ -1109,8 +1108,7 @@ static int sof_widget_parse_tokens(struct snd_soc_component *scomp, struct snd_s num_tuples += token_list[object_token_list[i]].count;
/* allocate memory for tuples array */ - size = sizeof(struct snd_sof_tuple) * num_tuples; - swidget->tuples = kzalloc(size, GFP_KERNEL); + swidget->tuples = kcalloc(num_tuples, sizeof(*swidget->tuples), GFP_KERNEL); if (!swidget->tuples) return -ENOMEM;
@@ -1547,7 +1545,6 @@ static int sof_link_load(struct snd_soc_component *scomp, int index, struct snd_ const struct sof_token_info *token_list = ipc_tplg_ops->token_list; struct snd_soc_tplg_private *private = &cfg->priv; struct snd_sof_dai_link *slink; - size_t size; u32 token_id = 0; int num_tuples = 0; int ret, num_sets; @@ -1659,8 +1656,7 @@ static int sof_link_load(struct snd_soc_component *scomp, int index, struct snd_ }
/* allocate memory for tuples array */ - size = sizeof(struct snd_sof_tuple) * num_tuples; - slink->tuples = kzalloc(size, GFP_KERNEL); + slink->tuples = kcalloc(num_tuples, sizeof(*slink->tuples), GFP_KERNEL); if (!slink->tuples) { kfree(slink->hw_configs); kfree(slink);
On Sun, 20 Mar 2022 07:22:26 +0100, Christophe JAILLET wrote:
Use kcalloc() instead of kzalloc()+open coded multiplication. This is safer and saves a few lines of code.
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/1] ASoC: SOF: topology: Avoid open coded arithmetic in memory allocation commit: 0a480df0b87a75b315cc6eef62bfb597111ee630
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
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If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
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Thanks, Mark
participants (2)
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Christophe JAILLET
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Mark Brown