target/linux/generic/patches-2.6.30/217-mini_fo_dentry_check.patch

   1 --- a/fs/mini_fo/meta.c
   2 +++ b/fs/mini_fo/meta.c
   3 @@ -48,6 +48,9 @@ int meta_build_lists(dentry_t *dentry)
   4                                              dtohd2(dentry),
   5                                              strlen(META_FILENAME));
   6                 mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
   7 +               if (IS_ERR(meta_dentry))
   8 +                       goto out_ok;
   9 +
  10                 if(!meta_dentry->d_inode) {
  11                         dput(meta_dentry);
  12                         goto out_ok;
  13 @@ -433,6 +436,8 @@ int meta_write_d_entry(dentry_t *dentry,
  14         meta_dentry = lookup_one_len(META_FILENAME,
  15                                      dtohd2(dentry), strlen (META_FILENAME));
  16         mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
  17 +       if (IS_ERR(meta_dentry))
  18 +               return PTR_ERR(meta_dentry);
  19
  20         /* We need to create a META-file */
  21          if(!meta_dentry->d_inode) {
  22 @@ -538,6 +543,8 @@ int meta_write_r_entry(dentry_t *dentry,
  23                                      dtohd2(dentry),
  24                                      strlen (META_FILENAME));
  25         mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
  26 +       if (IS_ERR(meta_dentry))
  27 +               return PTR_ERR(meta_dentry);
  28
  29          if(!meta_dentry->d_inode) {
  30                  /* We need to create a META-file */
  31 @@ -656,6 +663,8 @@ int meta_sync_d_list(dentry_t *dentry, i
  32                                      dtohd2(dentry),
  33                                      strlen(META_FILENAME));
  34         mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
  35 +       if (IS_ERR(meta_dentry))
  36 +               return PTR_ERR(meta_dentry);
  37
  38          if(!meta_dentry->d_inode) {
  39                  /* We need to create a META-file */
  40 @@ -803,6 +812,8 @@ int meta_sync_r_list(dentry_t *dentry, i
  41                                      dtohd2(dentry),
  42                                      strlen(META_FILENAME));
  43         mutex_unlock(&dtohd2(dentry)->d_inode->i_mutex);
  44 +       if (IS_ERR(meta_dentry))
  45 +               return PTR_ERR(meta_dentry);
  46
  47          if(!meta_dentry->d_inode) {
  48                  /* We need to create a META-file */