diff options
| author | John Crispin <blogic@openwrt.org> | 2013-08-09 20:54:31 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-08-12 20:37:48 +0200 |
| commit | 8ad2ee955b810e2a8061d2d3d2e4e4072250b5ec (patch) | |
| tree | 2adff5317d7664ed6fbac7fb7c9b1556a8d98e7e /drivers/tty/serial/lantiq.c | |
| parent | serial: MIPS: lantiq: add clk_enable() call to driver (diff) | |
| download | linux-8ad2ee955b810e2a8061d2d3d2e4e4072250b5ec.tar.xz linux-8ad2ee955b810e2a8061d2d3d2e4e4072250b5ec.zip | |
serial: MIPS: lantiq: fix clock error check
The clock should be checked with the proper IS_ERR() api before using it.
Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/lantiq.c')
| -rw-r--r-- | drivers/tty/serial/lantiq.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c index 93ac04686eb9..88d01e0bb0c8 100644 --- a/drivers/tty/serial/lantiq.c +++ b/drivers/tty/serial/lantiq.c @@ -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); } |