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staging: mt7621-pinctrl: init *map to NULL for correct memory assignation 

pinctrl_utils_reserve_map() calls krealloc() on *map. Because of this
*map need to be initialized to NULL before calling it.

Fixes: 62b6215c11 ("staging: mt7621-pinctrl: make use of pinctrl_utils_reserve_map")
Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergio Paracuellos 2018-07-09 06:52:45 +02:00 committed by Greg Kroah-Hartman
parent 00fee00245
commit 0be0debe4a
1 changed files with 1 additions and 0 deletions
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drivers/staging/mt7621-pinctrl/pinctrl-rt2880.c
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@ -88,6 +88,7 @@ static int rt2880_pinctrl_dt_node_to_map(struct pinctrl_dev *pctrldev,
for_each_node_with_property(np_config, "group") for_each_node_with_property(np_config, "group")
ngroups++; ngroups++;
*map = NULL;
ret = pinctrl_utils_reserve_map(pctrldev, map, &reserved_maps, ret = pinctrl_utils_reserve_map(pctrldev, map, &reserved_maps,
num_maps, ngroups); num_maps, ngroups);
if (ret) { if (ret) {