1 files changed, 14 insertions, 13 deletions

diff --git a/sound/usb/midi.c b/sound/usb/midi.c
index 5b4c58c3e2c5..cc39f63299ef 100644
--- a/sound/usb/midi.c
+++ b/sound/usb/midi.c
@@ -112,7 +112,7 @@ struct snd_usb_midi {
         struct usb_interface *iface;
         const struct snd_usb_audio_quirk *quirk;
         struct snd_rawmidi *rmidi;
-        struct usb_protocol_ops *usb_protocol_ops;
+        const struct usb_protocol_ops *usb_protocol_ops;
         struct list_head list;
         struct timer_list error_timer;
         spinlock_t disc_lock;
@@ -671,31 +671,32 @@ static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint *ep,
         }
 }
 
-static struct usb_protocol_ops snd_usbmidi_standard_ops = {
+static const struct usb_protocol_ops snd_usbmidi_standard_ops = {
         .input = snd_usbmidi_standard_input,
         .output = snd_usbmidi_standard_output,
         .output_packet = snd_usbmidi_output_standard_packet,
 };
 
-static struct usb_protocol_ops snd_usbmidi_midiman_ops = {
+static const struct usb_protocol_ops snd_usbmidi_midiman_ops = {
         .input = snd_usbmidi_midiman_input,
         .output = snd_usbmidi_standard_output,
         .output_packet = snd_usbmidi_output_midiman_packet,
 };
 
-static struct usb_protocol_ops snd_usbmidi_maudio_broken_running_status_ops = {
+static const
+struct usb_protocol_ops snd_usbmidi_maudio_broken_running_status_ops = {
         .input = snd_usbmidi_maudio_broken_running_status_input,
         .output = snd_usbmidi_standard_output,
         .output_packet = snd_usbmidi_output_standard_packet,
 };
 
-static struct usb_protocol_ops snd_usbmidi_cme_ops = {
+static const struct usb_protocol_ops snd_usbmidi_cme_ops = {
         .input = snd_usbmidi_cme_input,
         .output = snd_usbmidi_standard_output,
         .output_packet = snd_usbmidi_output_standard_packet,
 };
 
-static struct usb_protocol_ops snd_usbmidi_ch345_broken_sysex_ops = {
+static const struct usb_protocol_ops snd_usbmidi_ch345_broken_sysex_ops = {
         .input = ch345_broken_sysex_input,
         .output = snd_usbmidi_standard_output,
         .output_packet = snd_usbmidi_output_standard_packet,
@@ -795,7 +796,7 @@ static void snd_usbmidi_akai_output(struct snd_usb_midi_out_endpoint *ep,
         }
 }
 
-static struct usb_protocol_ops snd_usbmidi_akai_ops = {
+static const struct usb_protocol_ops snd_usbmidi_akai_ops = {
         .input = snd_usbmidi_akai_input,
         .output = snd_usbmidi_akai_output,
 };
@@ -835,7 +836,7 @@ static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint *ep,
         urb->transfer_buffer_length = 2 + count;
 }
 
-static struct usb_protocol_ops snd_usbmidi_novation_ops = {
+static const struct usb_protocol_ops snd_usbmidi_novation_ops = {
         .input = snd_usbmidi_novation_input,
         .output = snd_usbmidi_novation_output,
 };
@@ -867,7 +868,7 @@ static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint *ep,
         urb->transfer_buffer_length = count;
 }
 
-static struct usb_protocol_ops snd_usbmidi_raw_ops = {
+static const struct usb_protocol_ops snd_usbmidi_raw_ops = {
         .input = snd_usbmidi_raw_input,
         .output = snd_usbmidi_raw_output,
 };
@@ -883,7 +884,7 @@ static void snd_usbmidi_ftdi_input(struct snd_usb_midi_in_endpoint *ep,
                 snd_usbmidi_input_data(ep, 0, buffer + 2, buffer_length - 2);
 }
 
-static struct usb_protocol_ops snd_usbmidi_ftdi_ops = {
+static const struct usb_protocol_ops snd_usbmidi_ftdi_ops = {
         .input = snd_usbmidi_ftdi_input,
         .output = snd_usbmidi_raw_output,
 };
@@ -927,7 +928,7 @@ static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint *ep,
         urb->transfer_buffer_length = ep->max_transfer;
 }
 
-static struct usb_protocol_ops snd_usbmidi_122l_ops = {
+static const struct usb_protocol_ops snd_usbmidi_122l_ops = {
         .input = snd_usbmidi_us122l_input,
         .output = snd_usbmidi_us122l_output,
 };
@@ -1060,7 +1061,7 @@ static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint *ep,
         urb->transfer_buffer_length = ep->max_transfer - buf_free;
 }
 
-static struct usb_protocol_ops snd_usbmidi_emagic_ops = {
+static const struct usb_protocol_ops snd_usbmidi_emagic_ops = {
         .input = snd_usbmidi_emagic_input,
         .output = snd_usbmidi_emagic_output,
         .init_out_endpoint = snd_usbmidi_emagic_init_out,
@@ -2206,7 +2207,7 @@ static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi *umidi,
         return 0;
 }
 
-static struct snd_rawmidi_global_ops snd_usbmidi_ops = {
+static const struct snd_rawmidi_global_ops snd_usbmidi_ops = {
         .get_port_info = snd_usbmidi_get_port_info,
 };