From: Matt Schulte <matts@commtech-fastcom.com>
Date: Wed, 21 Nov 2012 16:39:18 +0000 (-0600)
Subject: tty/8250 Add check for pci_ioremap_bar failure
X-Git-Tag: next-20121205~28^2~17
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=13c3237dbcc92fa7d17d3eb06de6477c4bd7fb5d;p=karo-tx-linux.git

tty/8250 Add check for pci_ioremap_bar failure

Add check for pci_ioremap_bar failure

Signed-off-by: Matt Schulte <matts@commtech-fastcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index a795bd971eaa..26b9dc012ed0 100644
--- 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;