[SERIAL] Fix matching of MMIO ports
The function uart_match_port() incorrectly compares the ioremap'd virtual addresses of ports instead of the physical address to find duplicate ports for MMIO based UARTs. This fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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Russell King
parent
26e92861be
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1624f00334
@@ -2307,7 +2307,7 @@ int uart_match_port(struct uart_port *port1, struct uart_port *port2)
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return (port1->iobase == port2->iobase) &&
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return (port1->iobase == port2->iobase) &&
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(port1->hub6 == port2->hub6);
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(port1->hub6 == port2->hub6);
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case UPIO_MEM:
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case UPIO_MEM:
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return (port1->membase == port2->membase);
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return (port1->mapbase == port2->mapbase);
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}
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}
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return 0;
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return 0;
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}
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}
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