Messages in this thread Patch in this message | | | Date | Mon, 13 Aug 2018 18:46:51 +0300 | From | "Dmitry V. Levin" <> | Subject | [PATCH] uapi: fix linux/usb/audio.h userspace compilation error |
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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
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