* H. Nikolaus Schaller <h...@goldelico.com> [180613 12:41]: > > Now if I look into pinctrl_generic_add_group() and > pinctrl_generic_get_group_name(), > pctldev->num_groups++ is not protected if pinctrl_generic_add_group() may be > called by > two threads in parallel for the same pctldev. Hence a second thread may try > to insert > a different node into the radix tree at the same selector index. This fails > but there > is no error check - and the second entry is completely missing (but probably > assumed to > be there).
Sounds like pinctrl-single.c is missing mutex around calls to pinctrl_generic_add_group()? Regards, Tony
