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Commit 8ad2ee95 authored by John Crispin's avatar John Crispin Committed by Greg Kroah-Hartman
Browse files

serial: MIPS: lantiq: fix clock error check 



The clock should be checked with the proper IS_ERR() api before using it.

Signed-off-by: default avatarJohn Crispin <blogic@openwrt.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7c658e6b

drivers/tty/serial/lantiq.c

+2 −2
Original line number Diff line number Diff line
@@ -318,7 +318,7 @@ lqasc_startup(struct uart_port *port) 
	struct ltq_uart_port *ltq_port = to_ltq_uart_port(port);

	int retval;



	if (ltq_port->clk)

	if (!IS_ERR(ltq_port->clk))

		clk_enable(ltq_port->clk);

	port->uartclk = clk_get_rate(ltq_port->fpiclk);
@@ -386,7 +386,7 @@ lqasc_shutdown(struct uart_port *port) 
		port->membase + LTQ_ASC_RXFCON);

	ltq_w32_mask(ASCTXFCON_TXFEN, ASCTXFCON_TXFFLU,

		port->membase + LTQ_ASC_TXFCON);

	if (ltq_port->clk)

	if (!IS_ERR(ltq_port->clk))

		clk_disable(ltq_port->clk);

}