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ALSA: usb-audio: constify usb_device_id. 

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

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Arvind Yadav 2017-08-06 12:18:56 +05:30 committed by Takashi Iwai
parent 57ee11eaa1
commit 8824ae2de8
1 changed files with 2 additions and 2 deletions
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4
sound/usb/card.c
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@ -486,7 +486,7 @@ static bool get_alias_id(struct usb_device *dev, unsigned int *id)
return false;
}
static struct usb_device_id usb_audio_ids[]; /* defined below */
static const struct usb_device_id usb_audio_ids[]; /* defined below */
/* look for the corresponding quirk */
static const struct snd_usb_audio_quirk *
@ -814,7 +814,7 @@ static int usb_audio_reset_resume(struct usb_interface *intf)
#define usb_audio_reset_resume NULL
#endif /* CONFIG_PM */
static struct usb_device_id usb_audio_ids [] = {
static const struct usb_device_id usb_audio_ids [] = {
#include "quirks-table.h"
{ .match_flags = (USB_DEVICE_ID_MATCH_INT_CLASS | USB_DEVICE_ID_MATCH_INT_SUBCLASS),
.bInterfaceClass = USB_CLASS_AUDIO,