diff mbox series

[v3,1/2] usb: chipdea: core: fix return -EINVAL if request role is the same with current role

Message ID 20230317061516.2451728-1-xu.yang_2@nxp.com
State Superseded
Headers show
Series [v3,1/2] usb: chipdea: core: fix return -EINVAL if request role is the same with current role | expand

Commit Message

Xu Yang March 17, 2023, 6:15 a.m. UTC 
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>

---
changes since v1:
- no change
changes since v2:
- add acked-by tag
---
 drivers/usb/chipidea/core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 7ccb223ed53c..eae4bf865a8e 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -984,9 +984,12 @@  static ssize_t role_store(struct device *dev,
 			     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);