usb: gadget: f_uac2: constify snd_pcm_ops structures

snd_pcm_ops are not supposed to change at runtime. All functions
working with snd_pcm_ops provided by <sound/pcm.h> work with
const snd_pcm_ops. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c
index 5dd73b9..d4caa21 100644 (file)
--- a/drivers/usb/gadget/function/u_audio.c
+++ b/drivers/usb/gadget/function/u_audio.c
@@ -354,7 +354,7 @@ static int uac_pcm_null(struct snd_pcm_substream *substream)
        return 0;
 }
 
-static struct snd_pcm_ops uac_pcm_ops = {
+static const struct snd_pcm_ops uac_pcm_ops = {
        .open = uac_pcm_open,
        .close = uac_pcm_null,
        .ioctl = snd_pcm_lib_ioctl,