X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Fisdn%2Fhisax%2Fconfig.c;fp=drivers%2Fisdn%2Fhisax%2Fconfig.c;h=9280b581fa00f6ad34049d37e3718a188a84504c;hb=7172c64a7cee4dfa95864f49c914f7ea8cf497c8;hp=e10350360f2ff27c5158fbebe732fa0991bf44bd;hpb=3967a72a825e44bff5d10f516e90b6f59f59e599;p=linux-2.6.git

diff --git a/drivers/isdn/hisax/config.c b/drivers/isdn/hisax/config.c
index e10350360..9280b581f 100644
--- a/drivers/isdn/hisax/config.c
+++ b/drivers/isdn/hisax/config.c
@@ -631,7 +631,8 @@ static int HiSax_readstatus(u_char __user *buf, int len, int id, int channel)
 		count = cs->status_end - cs->status_read + 1;
 		if (count >= len)
 			count = len;
-		copy_to_user(p, cs->status_read, count);
+		if (copy_to_user(p, cs->status_read, count))
+			return -EFAULT;
 		cs->status_read += count;
 		if (cs->status_read > cs->status_end)
 			cs->status_read = cs->status_buf;
@@ -642,7 +643,8 @@ static int HiSax_readstatus(u_char __user *buf, int len, int id, int channel)
 				cnt = HISAX_STATUS_BUFSIZE;
 			else
 				cnt = count;
-			copy_to_user(p, cs->status_read, cnt);
+			if (copy_to_user(p, cs->status_read, cnt))
+				return -EFAULT;
 			p += cnt;
 			cs->status_read += cnt % HISAX_STATUS_BUFSIZE;
 			count -= cnt;