Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-19 10:31:48 +00:00
Code Issues Packages Projects Releases Wiki Activity

tty: serial: mxs-auart: Check the return value from clk_prepare_enable()

Browse Source 
clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Fabio Estevam 2013-12-02 01:17:58 -02:00 committed by Greg Kroah-Hartman
parent 753023dcdd
commit 9bbc3dca9d
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/tty/serial/mxs-auart.c
View File

@ -734,9 +734,12 @@ static void mxs_auart_reset(struct uart_port *u)
static int mxs_auart_startup(struct uart_port *u)
{
int ret;
struct mxs_auart_port *s = to_auart_port(u);
clk_prepare_enable(s->clk);
ret = clk_prepare_enable(s->clk);
if (ret)
return ret;
writel(AUART_CTRL0_CLKGATE, u->membase + AUART_CTRL0_CLR);
@ -957,7 +960,9 @@ auart_console_setup(struct console *co, char *options)
if (!s)
return -ENODEV;
clk_prepare_enable(s->clk);
ret = clk_prepare_enable(s->clk);
if (ret)
return ret;
if (options)
uart_parse_options(options, &baud, &parity, &bits, &flow);