From df3a304447a7023e7aace0f38879539c002bee2f Mon Sep 17 00:00:00 2001
From: Jeff Squyres <jsquyres@cisco.com>
Date: Sat, 3 Jan 2009 15:30:56 +0000
Subject: [PATCH] Fix CID 1182: ensure to check return of read() for failure.

This commit was SVN r20191.
---
 opal/mca/pstat/linux/pstat_linux_module.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/opal/mca/pstat/linux/pstat_linux_module.c b/opal/mca/pstat/linux/pstat_linux_module.c
index 49a1840701..b8cad57131 100644
--- a/opal/mca/pstat/linux/pstat_linux_module.c
+++ b/opal/mca/pstat/linux/pstat_linux_module.c
@@ -117,6 +117,10 @@ static int query(pid_t pid, opal_pstats_t *stats)
      */
     memset(data, 0, sizeof(data));
     len = read(fd, data, sizeof(data)-1);
+    if (len < 0) {
+        /* This shouldn't happen! */
+        return OPAL_ERR_FILE_OPEN_FAILURE;
+    }
     close(fd);
     
     /* remove newline at end */