From: Markus Elfring <Markus.Elfring@web.de>
To: Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au>,
linux-sound@vger.kernel.org, Jaroslav Kysela <perex@perex.cz>,
Takashi Iwai <tiwai@suse.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
linux-doc@vger.kernel.org, Jonathan Corbet <corbet@lwn.net>,
Shuah Khan <skhan@linuxfoundation.org>
Subject: Re: [RFC PATCH] ALSA: pci: add PreSonus Quantum PCI driver
Date: Fri, 21 Aug 2026 16:24:55 +0200 [thread overview]
Message-ID: <b8eafd53-f9ef-4baf-94c0-4e1ebac12c1f@web.de> (raw)
In-Reply-To: <20260820083646.11383-2-nicholas.johnson-opensource@outlook.com.au>
…
> +++ b/sound/pci/quantum/quantum_dma.c
> @@ -0,0 +1,853 @@
…
> +static int quantum_build_page_table(struct quantum_chip *chip,
> + struct quantum_page_table *pt,
> + const struct quantum_stream *stream,
> + struct snd_pcm_substream *substream,
> + size_t audio_size,
> + u32 addr_per_segment)
> +{
…
+ num_segments = (num_pages + addr_per_segment - 1) / addr_per_segment;
+
+ pt->num_entries = num_pages;
+ pt->num_segments = num_segments;
+ pt->addr_per_segment = addr_per_segment;
+ pt->size = num_segments * pt_stride;
+ pt->pages = kcalloc(num_segments, sizeof(*pt->pages), GFP_KERNEL);
+ if (!pt->pages)
+ return -ENOMEM;
…
Can it be nicer to perform any additional variable assignments only after
a successful memory allocation?
Regards,
Markus
next prev parent reply other threads:[~2026-08-21 14:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-20 8:36 [RFC PATCH 0/1] ALSA: add PreSonus Quantum PCI driver Nicholas Johnson
2026-08-20 8:36 ` [RFC PATCH 1/1] ALSA: pci: " Nicholas Johnson
2026-08-21 12:44 ` [RFC PATCH] " Markus Elfring
2026-08-21 13:00 ` Markus Elfring
2026-08-21 13:34 ` [RFC PATCH 1/1] " Markus Elfring
2026-08-21 14:24 ` Markus Elfring [this message]
2026-08-21 18:10 ` [RFC PATCH] " Markus Elfring
2026-08-22 14:20 ` Markus Elfring
2026-08-22 15:21 ` [RFC PATCH 1/1] " Matthew Wilcox
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