commit c30d53648a713a3f7f7711f081732aa814c6e74d
Author: Sergei Trofimovich <siarheit@google.com>
Date:   Sat May 30 23:20:42 2015 +0100

    mtpfs.c: remove all unlocking calls from mtpfs_getattr_real
    
    Lock is already acquired/freed in the caller function 'mtpfs_getattr'.
    Noticed when trying to use mtpfs today :)
    
    Should also fix the same issue https://github.com/cjd/mtpfs/issues/1
    as I get the same backtrace.
    
    Signed-off-by: Sergei Trofimovich <siarheit@google.com>

diff --git a/mtpfs.c b/mtpfs.c
index e5e1b03..553d282 100644
--- a/mtpfs.c
+++ b/mtpfs.c
@@ -776,5 +776,5 @@ mtpfs_getattr_real (const gchar * path, struct stat *stbuf)
 {
     int ret = 0;
-    if (path==NULL) return_unlock(-ENOENT);
+    if (path==NULL) return -ENOENT;
     memset (stbuf, 0, sizeof (struct stat));
 
@@ -787,5 +787,5 @@ mtpfs_getattr_real (const gchar * path, struct stat *stbuf)
         stbuf->st_mode = S_IFDIR | 0777;
         stbuf->st_nlink = 2;
-        return_unlock(0);
+        return 0;
     }
 
@@ -799,5 +799,5 @@ mtpfs_getattr_real (const gchar * path, struct stat *stbuf)
             stbuf->st_blocks = 2;
             stbuf->st_mtime = time(NULL);
-            return_unlock(0);
+            return 0;
         }
     }
@@ -808,5 +808,5 @@ mtpfs_getattr_real (const gchar * path, struct stat *stbuf)
         stbuf->st_mode = S_IFDIR | 0777;
         stbuf->st_nlink = 2;
-        return_unlock(0);
+        return 0;
     }
 
@@ -843,9 +843,9 @@ mtpfs_getattr_real (const gchar * path, struct stat *stbuf)
                 stbuf->st_blocks = 2;
                 stbuf->st_mtime = time(NULL);
-                return_unlock(0);
+                return 0;
             }
             playlist = playlist->next;   
         }
-        return_unlock(-ENOENT);
+        return -ENOENT;
     }
 
@@ -864,9 +864,9 @@ mtpfs_getattr_real (const gchar * path, struct stat *stbuf)
 				stbuf->st_mode = S_IFREG | 0777;
                 stbuf->st_mtime = file->modificationdate;
-				return_unlock(0);
+				return 0;
 			}
 		}
 
-		return_unlock(-ENOENT);
+		return -ENOENT;
     }