add stmac read mac form eeprom

hc

2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/usb/gadget/function/f_midi.c
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@@ -698,9 +698,9 @@
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 	f_midi_drop_out_substreams(midi);
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 }
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-static void f_midi_in_tasklet(unsigned long data)
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+static void f_midi_in_tasklet(struct tasklet_struct *t)
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 {
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-	struct f_midi *midi = (struct f_midi *) data;
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+	struct f_midi *midi = from_tasklet(midi, t, tasklet);
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 	f_midi_transmit(midi);
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 }
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@@ -875,7 +875,7 @@
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 	int status, n, jack = 1, i = 0, endpoint_descriptor_index = 0;
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 	midi->gadget = cdev->gadget;
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-	tasklet_init(&midi->tasklet, f_midi_in_tasklet, (unsigned long) midi);
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+	tasklet_setup(&midi->tasklet, f_midi_in_tasklet);
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 	status = f_midi_register_card(midi);
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 	if (status < 0)
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 		goto fail_register;
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@@ -1235,7 +1235,7 @@
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 	if (fi_midi && fi_midi->f) {
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 		midi = func_to_midi(fi_midi->f);
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-		if (midi->rmidi && midi->rmidi->card)
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+		if (midi->rmidi && midi->card && midi->rmidi->card)
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 			return sprintf(buf, "%d %d\n",
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 			midi->rmidi->card->number, midi->rmidi->device);
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 	}