From: Rosen Penev <rosenp@gmail.com>
To: linux-sound@vger.kernel.org
Cc: Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH] ALSA: oss: Use flexible allocation for PCM plugins
Date: Mon, 18 May 2026 17:46:47 -0700	[thread overview]
Message-ID: <20260519004647.627429-1-rosenp@gmail.com> (raw)

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>
---
 sound/core/oss/pcm_plugin.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/oss/pcm_plugin.c b/sound/core/oss/pcm_plugin.c
index 14b4a390a219..5f4d6945a7df 100644
--- a/sound/core/oss/pcm_plugin.c
+++ b/sound/core/oss/pcm_plugin.c
@@ -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;
-- 
2.54.0

next             reply	other threads:[~2026-05-19  0:47 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-19  0:46 Rosen Penev [this message]
2026-05-19  6:06 ` [PATCH] ALSA: oss: Use flexible allocation for PCM plugins Takashi Iwai

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