[rtems commit] cpukit/libcsupport/src/pwdgrp.c: Check return value

[Joel Sherril]

Module:    rtems
Branch:    master
Commit:    3211e8e9c0565fae8b13ba0115e3a23ad3ae8ade
Changeset: http://git.rtems.org/rtems/commit/?id=3211e8e9c0565fae8b13ba0115e3a23ad3ae8ade

Author:    Joel Sherrill <joel.sherrill at oarcorp.com>
Date:      Mon Nov 24 14:18:16 2014 -0600

cpukit/libcsupport/src/pwdgrp.c: Check return value

Coverity Id 1255518. mkdir() could fail. Check return value and return
on failure. Behavior is similar to if open() failed while writing the
files.

---

 cpukit/libcsupport/src/pwdgrp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/cpukit/libcsupport/src/pwdgrp.c b/cpukit/libcsupport/src/pwdgrp.c
index e1e0866..a5526a0 100644
--- a/cpukit/libcsupport/src/pwdgrp.c
+++ b/cpukit/libcsupport/src/pwdgrp.c
@@ -61,7 +61,11 @@ static void init_file(const char *name, const char *content)
  */
 static void pwdgrp_init(void)
 {
-  mkdir("/etc", S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
+  int rc;
+
+  rc = mkdir("/etc", S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
+  if ( rc != 0 )
+    return;
 
   /*
    *  Initialize /etc/passwd