X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fcompat_ioctl.c;h=bd26e4cbb994f810b0ce8dc8ce3780356e0f66fa;hb=9bfb52ad716e74785b2402b7ea17f30e0344b8e8;hp=b9e3357bcc2ead562e138ea71b89d13120d03f41;hpb=dd6d1844af33acb4edd0a40b1770d091a22c94be;p=linux-2.6

diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index b9e3357bcc..bd26e4cbb9 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -108,7 +108,6 @@
 #include <linux/dvb/dmx.h>
 #include <linux/dvb/frontend.h>
 #include <linux/dvb/video.h>
-#include <linux/lp.h>
 
 #ifdef CONFIG_SPARC
 #include <asm/fbio.h>
@@ -319,22 +318,21 @@ struct ifconf32 {
 
 static int dev_ifname32(unsigned int fd, unsigned int cmd, unsigned long arg)
 {
-	struct net_device *dev;
-	struct ifreq32 ifr32;
+	struct ifreq __user *uifr;
 	int err;
 
-	if (copy_from_user(&ifr32, compat_ptr(arg), sizeof(ifr32)))
+	uifr = compat_alloc_user_space(sizeof(struct ifreq));
+	if (copy_in_user(uifr, compat_ptr(arg), sizeof(struct ifreq32)))
 		return -EFAULT;
 
-	dev = dev_get_by_index(ifr32.ifr_ifindex);
-	if (!dev)
-		return -ENODEV;
+	err = sys_ioctl(fd, SIOCGIFNAME, (unsigned long)uifr);
+	if (err)
+		return err;
+
+	if (copy_in_user(compat_ptr(arg), uifr, sizeof(struct ifreq32)))
+		return -EFAULT;
 
-	strlcpy(ifr32.ifr_name, dev->name, sizeof(ifr32.ifr_name));
-	dev_put(dev);
-	
-	err = copy_to_user(compat_ptr(arg), &ifr32, sizeof(ifr32));
-	return (err ? -EFAULT : 0);
+	return 0;
 }
 
 static int dev_ifconf(unsigned int fd, unsigned int cmd, unsigned long arg)
@@ -3003,7 +3001,7 @@ static int __init init_sys32_ioctl(void)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(ioctl_start); i++) {
-		if (ioctl_start[i].next != 0) {
+		if (ioctl_start[i].next) {
 			printk("ioctl translation %d bad\n",i);
 			return -1;
 		}