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From: Takashi Iwai <>
Cc: Felipe Balbi <>,
	Greg Kroah-Hartman <>
Subject: [PATCH] usb: gadget: u_audio: Remove superfluous snd_dma_continuous_data()
Date: Fri,  8 Nov 2019 17:42:14 +0100
Message-ID: <> (raw)

The recent change (commit 08422d2c559d: "ALSA: memalloc: Allow NULL
device for SNDRV_DMA_TYPE_CONTINOUS type") made the PCM preallocation
helper accepting NULL as the device pointer for the default usage.
Drop the snd_dma_continuous_data() usage that became superfluous from
the callers.

Signed-off-by: Takashi Iwai <>


Note that the prerequisite commit 08422d2c559d is found currently only
on for-next branch of sound git tree, so please give ACK if it's OK,
so that I can apply on top of it.  Thanks!

 drivers/usb/gadget/function/u_audio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c
index 56906d15fb55..7ec6a996af26 100644
--- a/drivers/usb/gadget/function/u_audio.c
+++ b/drivers/usb/gadget/function/u_audio.c
@@ -585,7 +585,7 @@ int g_audio_setup(struct g_audio *g_audio, const char *pcm_name,
 	sprintf(card->longname, "%s %i", card_name, card->dev->id);
 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
-		snd_dma_continuous_data(GFP_KERNEL), 0, BUFF_SIZE_MAX);
+					      NULL, 0, BUFF_SIZE_MAX);
 	err = snd_card_register(card);

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Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-08 16:42 Takashi Iwai [this message]
2019-11-08 16:53 ` Greg Kroah-Hartman

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