From: Ulrich Drepper <drepper@redhat.com>
Date: Fri, 17 Apr 2009 21:26:34 +0000 (+0000)
Subject: * sysdeps/posix/preadv.c: Reading of zero bytes is no error.
X-Git-Tag: cvs/fedora-glibc-20090424T0747~19
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=571ac26f69c319b84f8191b38e5307d0ddf6174c;p=thirdparty%2Fglibc.git

* sysdeps/posix/preadv.c: Reading of zero bytes is no error.

	* sysdeps/posix/readv.c: Likewise.
	Reported by Markus Armbruster <armbru@redhat.com>.
---

diff --git a/ChangeLog b/ChangeLog
index 4b4bbdc63bd..d30e6b38591 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2009-04-17  Ulrich Drepper  <drepper@redhat.com>
 
+	* sysdeps/posix/preadv.c: Reading of zero bytes is no error.
+	* sysdeps/posix/readv.c: Likewise.
+	Reported by Markus Armbruster <armbru@redhat.com>.
+
 	* malloc/hooks.c (top_check): Force hook value into register.
 
 2009-04-16  Samuel Thibault  <samuel.thibault@ens-lyon.org>
diff --git a/sysdeps/posix/preadv.c b/sysdeps/posix/preadv.c
index e697604c190..3d975226cf0 100644
--- a/sysdeps/posix/preadv.c
+++ b/sysdeps/posix/preadv.c
@@ -83,7 +83,7 @@ PREADV (int fd, const struct iovec *vector, int count, OFF_T offset)
 
   /* Read the data.  */
   ssize_t bytes_read = PREAD (fd, buffer, bytes, offset);
-  if (bytes_read <= 0)
+  if (bytes_read < 0)
     return -1;
 
   /* Copy the data from BUFFER into the memory specified by VECTOR.  */
diff --git a/sysdeps/posix/readv.c b/sysdeps/posix/readv.c
index 50bcc913159..6f16b9d946b 100644
--- a/sysdeps/posix/readv.c
+++ b/sysdeps/posix/readv.c
@@ -70,7 +70,7 @@ __libc_readv (int fd, const struct iovec *vector, int count)
 
   /* Read the data.  */
   ssize_t bytes_read = __read (fd, buffer, bytes);
-  if (bytes_read <= 0)
+  if (bytes_read < 0)
     return -1;
 
   /* Copy the data from BUFFER into the memory specified by VECTOR.  */