From: "Dmitry V. Levin" <ldv@altlinux.org>
To: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk>,
Takashi Iwai <tiwai@suse.de>,
Ruslan Bilovol <ruslan.bilovol@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH] uapi: fix linux/usb/audio.h userspace compilation error
Date: Mon, 13 Aug 2018 18:46:51 +0300 [thread overview]
Message-ID: <20180813154651.GB22820@altlinux.org> (raw)
Replace NULL with 0 in uac_mixer_unit_bmControls() to fix the following
linux/usb/audio.h userspace compilation error:
/usr/include/linux/usb/audio.h: In function 'uac_mixer_unit_bmControls':
/usr/include/linux/usb/audio.h:304:10: error: 'NULL' undeclared (first use in this function)
return NULL;
Fixes: 6cfd839ae78e ("ALSA: usb-audio: UAC3. Add support for mixer unit.")
Cc: <stable@vger.kernel.org> # v4.18
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
---
include/uapi/linux/usb/audio.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/uapi/linux/usb/audio.h b/include/uapi/linux/usb/audio.h
index 74e520fb944f..2b61fe34b2ca 100644
--- a/include/uapi/linux/usb/audio.h
+++ b/include/uapi/linux/usb/audio.h
@@ -301,7 +301,7 @@ static inline __u8 *uac_mixer_unit_bmControls(struct uac_mixer_unit_descriptor *
case UAC_VERSION_3:
return &desc->baSourceID[desc->bNrInPins + 2];
default:
- return NULL;
+ return 0;
}
}
--
ldv
next reply other threads:[~2018-08-13 15:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-13 15:46 Dmitry V. Levin [this message]
2018-08-13 15:55 ` [PATCH] uapi: fix linux/usb/audio.h userspace compilation error Takashi Iwai
2018-08-13 16:01 ` Dmitry V. Levin
2018-08-13 16:09 ` Takashi Iwai
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