@@ -1203,18 +1203,16 @@ static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c,
JFFS2_ERROR("failed to read from flash: error %d, %zd of %zd bytes read\n",
ret, retlen, sizeof(*latest_node));
/* FIXME: If this fails, there seems to be a memory leak. Find it. */
- mutex_unlock(&f->sem);
- jffs2_do_clear_inode(c, f);
- return ret?ret:-EIO;
+ ret = ret ? ret : -EIO;
+ goto out;
}
crc = crc32(0, latest_node, sizeof(*latest_node)-8);
if (crc != je32_to_cpu(latest_node->node_crc)) {
JFFS2_ERROR("CRC failed for read_inode of inode %u at physical location 0x%x\n",
f->inocache->ino, ref_offset(rii.latest_ref));
- mutex_unlock(&f->sem);
- jffs2_do_clear_inode(c, f);
- return -EIO;
+ ret = -EIO;
+ goto out;
}
switch(jemode_to_cpu(latest_node->mode) & S_IFMT) {
@@ -1251,16 +1249,14 @@ static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c,
* operation. */
uint32_t csize = je32_to_cpu(latest_node->csize);
if (csize > JFFS2_MAX_NAME_LEN) {
- mutex_unlock(&f->sem);
- jffs2_do_clear_inode(c, f);
- return -ENAMETOOLONG;
+ ret = -ENAMETOOLONG;
+ goto out;
}
f->target = kmalloc(csize + 1, GFP_KERNEL);
if (!f->target) {
JFFS2_ERROR("can't allocate %u bytes of memory for the symlink target path cache\n", csize);
- mutex_unlock(&f->sem);
- jffs2_do_clear_inode(c, f);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto out;
}
ret = jffs2_flash_read(c, ref_offset(rii.latest_ref) + sizeof(*latest_node),
@@ -1271,9 +1267,7 @@ static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c,
ret = -EIO;
kfree(f->target);
f->target = NULL;
- mutex_unlock(&f->sem);
- jffs2_do_clear_inode(c, f);
- return ret;
+ goto out;
}
f->target[csize] = '\0';
@@ -1289,25 +1283,22 @@ static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c,
if (f->metadata) {
JFFS2_ERROR("Argh. Special inode #%u with mode 0%o had metadata node\n",
f->inocache->ino, jemode_to_cpu(latest_node->mode));
- mutex_unlock(&f->sem);
- jffs2_do_clear_inode(c, f);
- return -EIO;
+ ret = -EIO;
+ goto out;
}
if (!frag_first(&f->fragtree)) {
JFFS2_ERROR("Argh. Special inode #%u with mode 0%o has no fragments\n",
f->inocache->ino, jemode_to_cpu(latest_node->mode));
- mutex_unlock(&f->sem);
- jffs2_do_clear_inode(c, f);
- return -EIO;
+ ret = -EIO;
+ goto out;
}
/* ASSERT: f->fraglist != NULL */
if (frag_next(frag_first(&f->fragtree))) {
JFFS2_ERROR("Argh. Special inode #%u with mode 0x%x had more than one node\n",
f->inocache->ino, jemode_to_cpu(latest_node->mode));
/* FIXME: Deal with it - check crc32, check for duplicate node, check times and discard the older one */
- mutex_unlock(&f->sem);
- jffs2_do_clear_inode(c, f);
- return -EIO;
+ ret = -EIO;
+ goto out;
}
/* OK. We're happy */
f->metadata = frag_first(&f->fragtree)->node;
@@ -1317,8 +1308,13 @@ static int jffs2_do_read_inode_internal(struct jffs2_sb_info *c,
}
if (f->inocache->state == INO_STATE_READING)
jffs2_set_inocache_state(c, f->inocache, INO_STATE_PRESENT);
-
- return 0;
+out:
+ if (ret) {
+ mutex_unlock(&f->sem);
+ jffs2_do_clear_inode(c, f);
+ mutex_lock(&f->sem);
+ }
+ return ret;
}
/* Scan the list of all nodes present for this ino, build map of versions, etc. */
@@ -1400,10 +1396,9 @@ int jffs2_do_crccheck_inode(struct jffs2_sb_info *c, struct jffs2_inode_cache *i
f->inocache = ic;
ret = jffs2_do_read_inode_internal(c, f, &n);
- if (!ret) {
- mutex_unlock(&f->sem);
+ mutex_unlock(&f->sem);
+ if (!ret)
jffs2_do_clear_inode(c, f);
- }
jffs2_xattr_do_crccheck_inode(c, ic);
kfree (f);
return ret;