tty/8250 Add check for pci_ioremap_bar failure

Add check for pci_ioremap_bar failure Signed-off-by: Matt Schulte <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
kawasaki · Nov 22, 2012 · 13c3237 · 13c3237
1 parent 14faa8c
commit 13c3237
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
@@ -1172,6 +1172,8 @@ pci_xr17v35x_setup(struct serial_private *priv,
 	u8 __iomem *p;
 
 	p = pci_ioremap_bar(priv->dev, 0);
+	if (p == NULL)
+		return -ENOMEM;
 
 	port->port.flags |= UPF_EXAR_EFR;