[hurd] 30/98: fatfs: fix error handling in diskfs_lookup_hard

[Samuel Thibault]

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sthibault pushed a commit to branch upstream
in repository hurd.

commit 6ba9bf05e62d651505e1487b50eee90bd6379e02
Author: Justus Winter <address@hidden>
Date:   Wed Nov 20 11:46:29 2013 +0100

    fatfs: fix error handling in diskfs_lookup_hard
    
    Found using the Clang Static Analyzer.
    
    * fatfs/dir.c (diskfs_lookup_hard): Fix error handling.
---
 fatfs/dir.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fatfs/dir.c b/fatfs/dir.c
index b2b7d7e..60fc898 100644
--- a/fatfs/dir.c
+++ b/fatfs/dir.c
@@ -231,6 +231,8 @@ diskfs_lookup_hard (struct node *dp, const char *name, enum 
lookup_type type,
   err = vm_map (mach_task_self (),
                 &buf, buflen, 0, 1, memobj, 0, 0, prot, prot, 0);
   mach_port_deallocate (mach_task_self (), memobj);
+  if (err)
+    return err;
 
   inum = 0;
 

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