Commit 1b0b5ca8 authored by Lukasz Gemborowski's avatar Lukasz Gemborowski Committed by Greg Kroah-Hartman

i2c: mux: reg: wrong condition checked for of_address_to_resource return value

commit 22ebf00e upstream.

of_address_to_resource return 0 on successful call but
devm_ioremap_resource is called only if it returns non-zero value
Signed-off-by: default avatarLukasz Gemborowski <lukasz.gemborowski@nokia.com>
Reviewed-by: default avatarAlexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 470f47fc
......@@ -150,7 +150,7 @@ static int i2c_mux_reg_probe_dt(struct regmux *mux,
mux->data.idle_in_use = true;
/* map address from "reg" if exists */
if (of_address_to_resource(np, 0, &res)) {
if (of_address_to_resource(np, 0, &res) == 0) {
mux->data.reg_size = resource_size(&res);
mux->data.reg = devm_ioremap_resource(&pdev->dev, &res);
if (IS_ERR(mux->data.reg))
......
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