add stmac read mac form eeprom

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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/media/usb/em28xx/em28xx-core.c
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@@ -777,6 +777,7 @@
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 static void em28xx_irq_callback(struct urb *urb)
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 {
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 	struct em28xx *dev = urb->context;
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+	unsigned long flags;
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 	int i;
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 	switch (urb->status) {
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@@ -793,9 +794,9 @@
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 	}
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 	/* Copy data from URB */
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-	spin_lock(&dev->slock);
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+	spin_lock_irqsave(&dev->slock, flags);
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 	dev->usb_ctl.urb_data_copy(dev, urb);
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-	spin_unlock(&dev->slock);
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+	spin_unlock_irqrestore(&dev->slock, flags);
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 	/* Reset urb buffers */
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 	for (i = 0; i < urb->number_of_packets; i++) {