diff --git a/net/netatalk/files/patch-libatalk_adouble_ad_sendfile.c b/net/netatalk/files/patch-libatalk_adouble_ad_sendfile.c
new file mode 100644
index 000000000000..97437a845846
--- /dev/null
+++ b/net/netatalk/files/patch-libatalk_adouble_ad_sendfile.c
@@ -0,0 +1,20 @@
+--- libatalk/adouble/ad_sendfile.c.orig	2011-12-05 13:28:30.000000000 +0000
++++ libatalk/adouble/ad_sendfile.c	2012-04-29 00:47:10.375795000 +0000
+@@ -67,7 +67,16 @@ ssize_t sys_sendfile(int tofd, int fromf
+ #include <sys/uio.h>
+ ssize_t sys_sendfile(int tofd, int fromfd, off_t *offset, size_t count)
+ {
+-  return sendfile(fromfd, tofd, *offset, count, NULL, offset, 0);
++    off_t len;
++    int ret;
++
++    ret = sendfile(fromfd, tofd, *offset, count, NULL, &len, 0);
++
++    *offset += len;
++
++    if (ret != 0)
++        return -1;
++    return len;
+ }
+ 
+ #else