X-Git-Url: http://git.onelab.eu/?p=linux-2.6.git;a=blobdiff_plain;f=drivers%2Fnet%2Fwan%2Fn2.c;fp=drivers%2Fnet%2Fwan%2Fn2.c;h=dcf46add3adfece0ce13b4d57173dddcabca9316;hp=cd32751b64eb6e6f6e8355a54a21e3cf751b15cc;hb=16c70f8c1b54b61c3b951b6fb220df250fe09b32;hpb=4e76c8a9fa413ccc09d3f7f664183dcce3555d57

diff --git a/drivers/net/wan/n2.c b/drivers/net/wan/n2.c
index cd32751b6..dcf46add3 100644
--- a/drivers/net/wan/n2.c
+++ b/drivers/net/wan/n2.c
@@ -7,7 +7,7 @@
  * under the terms of version 2 of the GNU General Public License
  * as published by the Free Software Foundation.
  *
- * For information see http://hq.pm.waw.pl/hdlc/
+ * For information see <http://www.kernel.org/pub/linux/utils/net/hdlc/>
  *
  * Note: integrated CSU/DSU/DDS are not supported by this driver
  *
@@ -387,6 +387,11 @@ static int __init n2_run(unsigned long io, unsigned long irq,
 	}
 	card->phy_winbase = winbase;
 	card->winbase = ioremap(winbase, USE_WINDOWSIZE);
+	if (!card->winbase) {
+		printk(KERN_ERR "n2: ioremap() failed\n");
+		n2_destroy_card(card);
+		return -EFAULT;
+	}
 
 	outb(0, io + N2_PCR);
 	outb(winbase >> 12, io + N2_BAR);
@@ -559,4 +564,5 @@ module_exit(n2_cleanup);
 MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>");
 MODULE_DESCRIPTION("RISCom/N2 serial port driver");
 MODULE_LICENSE("GPL v2");
-module_param(hw, charp, 0444);	/* hw=io,irq,ram,ports:io,irq,... */
+module_param(hw, charp, 0444);
+MODULE_PARM_DESC(hw, "io,irq,ram,ports:io,irq,...");