diff options
| author | Dave Airlie <airlied@redhat.com> | 2017-03-28 10:34:19 +0300 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2017-03-28 10:34:19 +0300 |
| commit | e5c1ff14757afe21733ddee9cc4bbaeaeadbf803 (patch) | |
| tree | 0da1c9aaf772fac30fe68590a4ca1c3dd439cebd /drivers/tty/serial/8250/8250_dw.c | |
| parent | 65d1086c44791112188f6aebbdc3a27cab3736d3 (diff) | |
| parent | c02ed2e75ef4c74e41e421acb4ef1494671585e8 (diff) | |
| download | linux-e5c1ff14757afe21733ddee9cc4bbaeaeadbf803.tar.xz | |
Backmerge tag 'v4.11-rc4' into drm-next
Linux 4.11-rc4
The i915 GVT team need the rc4 code to base some more code on.
Diffstat (limited to 'drivers/tty/serial/8250/8250_dw.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dw.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index 6ee55a2d47bb..e65808c482f1 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -257,7 +257,7 @@ static void dw8250_set_termios(struct uart_port *p, struct ktermios *termios, { unsigned int baud = tty_termios_baud_rate(termios); struct dw8250_data *d = p->private_data; - unsigned int rate; + long rate; int ret; if (IS_ERR(d->clk) || !old) @@ -265,7 +265,12 @@ static void dw8250_set_termios(struct uart_port *p, struct ktermios *termios, clk_disable_unprepare(d->clk); rate = clk_round_rate(d->clk, baud * 16); - ret = clk_set_rate(d->clk, rate); + if (rate < 0) + ret = rate; + else if (rate == 0) + ret = -ENOENT; + else + ret = clk_set_rate(d->clk, rate); clk_prepare_enable(d->clk); if (!ret) |