diff options
| author | Aaron Sierra <asierra@xes-inc.com> | 2014-10-30 19:49:52 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-06 14:57:25 -0800 |
| commit | 5d14bba91d8c350b21d28834fab95f67a46a264e (patch) | |
| tree | 784ed6775886e05e2d783c5405b9be318b4dcee3 /drivers/tty/serial/8250/8250_pci.c | |
| parent | 398a9db655efcc208285997c351fe73702735d88 (diff) | |
serial: 8250_pci: Check mapping in pci_ni8430_init
Check the return value of ioremap_nocache to make sure we got a
valid mapping.
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/8250/8250_pci.c')
| -rw-r--r-- | drivers/tty/serial/8250/8250_pci.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c index 50f75703fd54..003679fc884b 100644 --- a/drivers/tty/serial/8250/8250_pci.c +++ b/drivers/tty/serial/8250/8250_pci.c @@ -757,6 +757,8 @@ pci_ni8430_setup(struct serial_private *priv, offset += idx * board->uart_offset; p = pci_ioremap_bar(dev, bar); + if (!p) + return -ENOMEM; /* enable the transceiver */ writeb(readb(p + offset + NI8430_PORTCON) | NI8430_PORTCON_TXVR_ENABLE, |