PATCH: fix a copy_user return

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Fri Jul 18 2003 - 09:24:04 EST


diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.6.0-test1/fs/proc/proc_misc.c linux-2.6.0-test1-ac2/fs/proc/proc_misc.c
--- linux-2.6.0-test1/fs/proc/proc_misc.c 2003-07-10 21:05:28.000000000 +0100
+++ linux-2.6.0-test1-ac2/fs/proc/proc_misc.c 2003-07-15 17:49:25.000000000 +0100
@@ -536,7 +536,8 @@
                 buf++; p++; count--; read++;
         }
         pnt = (char *)prof_buffer + p - sizeof(unsigned int);
- copy_to_user(buf,(void *)pnt,count);
+ if(copy_to_user(buf,(void *)pnt,count))
+ return -EFAULT;
         read += count;
         *ppos += read;
         return read;
-
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