Merge to Fedora kernel-2.6.18-1.2239_FC5 patched with stable patch-2.6.18.2-vs2.0...

[linux-2.6.git] / drivers / isdn / hisax / config.c

diff --git a/drivers/isdn/hisax/config.c b/drivers/isdn/hisax/config.c
index e103503..9280b58 100644 (file)
--- 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;