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| author | Steve French | 2005-05-17 20:16:18 +0200 |
|---|---|---|
| committer | Steve French | 2005-05-17 20:16:18 +0200 |
| commit | b2aeb9d565be5ef00fb9f921c6d2459c74d90cdf (patch) | |
| tree | e7adab50ce6a13ef5ceb0fbb3d1208ae63523dc9 /fs/cifs/inode.c | |
| parent | [CIFS] missing break needed to handle < when mount option "mapchars" specified (diff) | |
| download | kernel-qcow2-linux-b2aeb9d565be5ef00fb9f921c6d2459c74d90cdf.tar.gz kernel-qcow2-linux-b2aeb9d565be5ef00fb9f921c6d2459c74d90cdf.tar.xz kernel-qcow2-linux-b2aeb9d565be5ef00fb9f921c6d2459c74d90cdf.zip | |
[CIFS] Fix oops in cifs_unlink. Caused in some cases when renaming over existing,
newly created, file.
Samba bugzilla: 2697
Signed-off-by: Steve French (sfrench@us.ibm.com)
Diffstat (limited to 'fs/cifs/inode.c')
| -rw-r--r-- | fs/cifs/inode.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index 670947288262..b8b78cbb34c9 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -422,7 +422,8 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (!rc) { - direntry->d_inode->i_nlink--; + if(direntry->d_inode) + direntry->d_inode->i_nlink--; } else if (rc == -ENOENT) { d_drop(direntry); } else if (rc == -ETXTBSY) { @@ -440,7 +441,8 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); CIFSSMBClose(xid, pTcon, netfid); - direntry->d_inode->i_nlink--; + if(direntry->d_inode) + direntry->d_inode->i_nlink--; } } else if (rc == -EACCES) { /* try only if r/o attribute set in local lookup data? */ @@ -494,7 +496,8 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); if (!rc) { - direntry->d_inode->i_nlink--; + if(direntry->d_inode) + direntry->d_inode->i_nlink--; } else if (rc == -ETXTBSY) { int oplock = FALSE; __u16 netfid; @@ -514,17 +517,20 @@ int cifs_unlink(struct inode *inode, struct dentry *direntry) cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR); CIFSSMBClose(xid, pTcon, netfid); - direntry->d_inode->i_nlink--; + if(direntry->d_inode) + direntry->d_inode->i_nlink--; } /* BB if rc = -ETXTBUSY goto the rename logic BB */ } } } - cifsInode = CIFS_I(direntry->d_inode); - cifsInode->time = 0; /* will force revalidate to get info when - needed */ - direntry->d_inode->i_ctime = inode->i_ctime = inode->i_mtime = - current_fs_time(inode->i_sb); + if(direntry->d_inode) { + cifsInode = CIFS_I(direntry->d_inode); + cifsInode->time = 0; /* will force revalidate to get info + when needed */ + direntry->d_inode->i_ctime = current_fs_time(inode->i_sb); + } + inode->i_ctime = inode->i_mtime = current_fs_time(inode->i_sb); cifsInode = CIFS_I(inode); cifsInode->time = 0; /* force revalidate of dir as well */ |