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ALSA: oss: Use flexible allocation for PCM plugins

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Allocate PCM plugin objects with kzalloc_flex() for the trailing
extra data area instead of open-coding the size calculation.

This keeps the allocation tied to the existing flexible array member
without changing the plugin lifetime.

Assisted-by: Codex:GPT-5.5
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20260519004647.627429-1-rosenp@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Rosen Penev 2026-05-18 17:46:47 -07:00 committed by Takashi Iwai
parent 1ab8e422dc
commit 2c515c221a
1 changed files with 1 additions and 1 deletions
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2
sound/core/oss/pcm_plugin.c
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@ -146,7 +146,7 @@ int snd_pcm_plugin_build(struct snd_pcm_substream *plug,
return -ENXIO;
if (snd_BUG_ON(!src_format || !dst_format))
return -ENXIO;
plugin = kzalloc(sizeof(*plugin) + extra, GFP_KERNEL);
plugin = kzalloc_flex(*plugin, extra_data, extra);
if (plugin == NULL)
return -ENOMEM;
plugin->name = name;