[PATCH] missing copy_to_user check in pc300 wan driver

7bb3f4d2 · Dave Jones · Linus Torvalds · 9c810d74 · 7bb3f4d2
Commit 7bb3f4d2 authored Aug 13, 2003 by Dave Jones Committed by Linus Torvalds Aug 13, 2003
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drivers/net/wan/pc300_drv.c drivers/net/wan/pc300_drv.c +2 -1

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--- a/drivers/net/wan/pc300_drv.c
+++ b/drivers/net/wan/pc300_drv.c
@@ -2623,7 +2623,8 @@ int cpc_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 					       sizeof(struct net_device_stats));
 					if (card->hw.type == PC300_TE)
 						memcpy(&pc300stats.te_stats,&chan->falc,sizeof(falc_t));
-				    copy_to_user(arg, &pc300stats, sizeof(pc300stats_t));
+				    	if (copy_to_user(arg, &pc300stats, sizeof(pc300stats_t)))
+						return -EFAULT;
 				}
 				return 0;
 			}