| 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 */ |
| 49 | |
