usb: gadget: midi2: Fix interpretation of is_midi1 bits

The UMP Function Block info m1.0 field (represented by is_midi1 sysfs
entry) is an enumeration from 0 to 2, while the midi2 gadget driver
incorrectly copies it to the corresponding snd_ump_block_info.flags
bits as-is.  This made the wrong bit flags set when m1.0 = 2.

This patch corrects the wrong interpretation of is_midi1 bits.

Fixes: 29ee7a4 ("usb: gadget: midi2: Add configfs support")
Cc: [email protected]
Signed-off-by: Takashi Iwai <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: tiwai

drivers/usb/gadget/function/f_midi2.c

@@ -1591,7 +1591,11 @@ static int f_midi2_create_card(struct f_midi2 *midi2)
 			fb->info.midi_ci_version = b->midi_ci_version;
 			fb->info.ui_hint = reverse_dir(b->ui_hint);
 			fb->info.sysex8_streams = b->sysex8_streams;
-			fb->info.flags |= b->is_midi1;
+			if (b->is_midi1 < 2)
+				fb->info.flags |= b->is_midi1;
+			else
+				fb->info.flags |= SNDRV_UMP_BLOCK_IS_MIDI1 |
+					SNDRV_UMP_BLOCK_IS_LOWSPEED;
 			strscpy(fb->info.name, ump_fb_name(b),
 				sizeof(fb->info.name));
 		}