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uci: refactor revert code to avoid illegal pointer access

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This commit is contained in:
Jo-Philipp Wich 2013-08-12 14:49:02 +02:00
parent c2a7fcf947
commit 97384dd72a
1 changed files with 13 additions and 10 deletions
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23
uci.c
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@ -1021,19 +1021,22 @@ rpc_uci_revert_commit(struct blob_attr *msg, bool commit)
return UBUS_STATUS_PERMISSION_DENIED;
ptr.package = blobmsg_data(tb[RPC_C_CONFIG]);
uci_load(cursor, ptr.package, &p);
if (!p || uci_lookup_ptr(cursor, &ptr, NULL, true) || !ptr.p)
goto out;
if (commit)
uci_commit(cursor, &p, false);
else
uci_revert(cursor, &ptr);
{
uci_load(cursor, ptr.package, &p);
out:
if (p)
uci_unload(cursor, p);
if (p)
{
uci_commit(cursor, &p, false);
uci_unload(cursor, p);
}
}
else
{
if (!uci_lookup_ptr(cursor, &ptr, NULL, true) && ptr.p)
uci_revert(cursor, &ptr);
}
return rpc_uci_status();
}