disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/tty/serial/8250/8250_mid.c
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@@ -73,6 +73,11 @@
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 	return 0;
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 }
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+static void pnw_exit(struct mid8250 *mid)
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+{
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+	pci_dev_put(mid->dma_dev);
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+}
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+
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 static int tng_handle_irq(struct uart_port *p)
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 {
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 	struct mid8250 *mid = p->private_data;
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@@ -122,6 +127,11 @@
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 	p->handle_irq = tng_handle_irq;
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 	return 0;
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+}
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+
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+static void tng_exit(struct mid8250 *mid)
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+{
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+	pci_dev_put(mid->dma_dev);
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 }
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 static int dnv_handle_irq(struct uart_port *p)
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@@ -330,9 +340,9 @@
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 	pci_set_drvdata(pdev, mid);
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 	return 0;
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+
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 err:
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-	if (mid->board->exit)
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-		mid->board->exit(mid);
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+	mid->board->exit(mid);
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 	return ret;
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 }
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@@ -342,8 +352,7 @@
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 	serial8250_unregister_port(mid->line);
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-	if (mid->board->exit)
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-		mid->board->exit(mid);
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+	mid->board->exit(mid);
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 }
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 static const struct mid8250_board pnw_board = {
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@@ -351,6 +360,7 @@
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 	.freq = 50000000,
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 	.base_baud = 115200,
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 	.setup = pnw_setup,
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+	.exit = pnw_exit,
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 };
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 static const struct mid8250_board tng_board = {
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@@ -358,6 +368,7 @@
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 	.freq = 38400000,
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 	.base_baud = 1843200,
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 	.setup = tng_setup,
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+	.exit = tng_exit,
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 };
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 static const struct mid8250_board dnv_board = {