From: Xu Yang xu.yang_2@nxp.com
commit 3670de80678961eda7fa2220883fc77c16868951 upstream.
It should not return -EINVAL if the request role is the same with current role, return non-error and without do anything instead.
Fixes: a932a8041ff9 ("usb: chipidea: core: add sysfs group") cc: stable@vger.kernel.org Acked-by: Peter Chen peter.chen@kernel.org Signed-off-by: Xu Yang xu.yang_2@nxp.com Link: https://lore.kernel.org/r/20230317061516.2451728-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/chipidea/core.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
--- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -974,9 +974,12 @@ static ssize_t role_store(struct device strlen(ci->roles[role]->name))) break;
- if (role == CI_ROLE_END || role == ci->role) + if (role == CI_ROLE_END) return -EINVAL;
+ if (role == ci->role) + return n; + pm_runtime_get_sync(dev); disable_irq(ci->irq); ci_role_stop(ci);