_of_init_opp_table_v2() isn't freeing up resources on some errors and the error values returned are also not correct always.
This fixes following problems: - Return -ENOENT, if no entries are found in the table. - Use IS_ERR() to properly check return value of _find_device_opp(). - Return error value with PTR_ERR() in above case. - Free table if _find_device_opp() fails. Reported-by: Dan Carpenter <[email protected]> Signed-off-by: Viresh Kumar <[email protected]> --- drivers/base/power/opp.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c index 204c6c945168..4d6c4576f7ae 100644 --- a/drivers/base/power/opp.c +++ b/drivers/base/power/opp.c @@ -1323,28 +1323,30 @@ static int _of_init_opp_table_v2(struct device *dev, if (ret) { dev_err(dev, "%s: Failed to add OPP, %d\n", __func__, ret); - break; + goto free_table; } } /* There should be one of more OPP defined */ - if (WARN_ON(!count)) + if (WARN_ON(!count)) { + ret = -ENOENT; goto put_opp_np; + } - if (!ret) { - if (!dev_opp) { - dev_opp = _find_device_opp(dev); - if (WARN_ON(!dev_opp)) - goto put_opp_np; - } - - dev_opp->np = opp_np; - dev_opp->shared_opp = of_property_read_bool(opp_np, - "opp-shared"); - } else { - of_free_opp_table(dev); + dev_opp = _find_device_opp(dev); + if (WARN_ON(IS_ERR(dev_opp))) { + ret = PTR_ERR(dev_opp); + goto free_table; } + dev_opp->np = opp_np; + dev_opp->shared_opp = of_property_read_bool(opp_np, "opp-shared"); + + of_node_put(opp_np); + return 0; + +free_table: + of_free_opp_table(dev); put_opp_np: of_node_put(opp_np); -- 2.4.0 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
