diff options
| author | Stefan Potyra <Stefan.Potyra@elektrobit.com> | 2017-12-06 16:46:12 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-15 20:27:43 +0100 |
| commit | 8af016aa5a27c6a2505460eb4d83f1e70c38dc43 (patch) | |
| tree | 08479e60e95980ad1d5d8d715edbaf595fc07ff1 /drivers/tty | |
| parent | serial: stm32: fix name conflict with 8250 (diff) | |
| download | linux-8af016aa5a27c6a2505460eb4d83f1e70c38dc43.tar.xz linux-8af016aa5a27c6a2505460eb4d83f1e70c38dc43.zip | |
serial: 8250_dw: Disable clock on error
If there is no clock rate for uartclk defined, disable the previously
enabled clock again.
Found by Linux Driver Verification project (linuxtesting.org).
Fixes: 23f5b3fdd04e serial: 8250_dw: only get the clock rate in one place
Signed-off-by: Stefan Potyra <Stefan.Potyra@elektrobit.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/8250/8250_dw.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index 5bb0c42c88dd..bda75d317d24 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -515,7 +515,8 @@ static int dw8250_probe(struct platform_device *pdev) /* If no clock rate is defined, fail. */ if (!p->uartclk) { dev_err(dev, "clock rate not defined\n"); - return -EINVAL; + err = -EINVAL; + goto err_clk; } data->pclk = devm_clk_get(dev, "apb_pclk"); |