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* [PATCH 1/2] usb: typec: thunderbolt: Fix loops that iterate TYPEC_PLUG_SOP_P and TYPEC_PLUG_SOP_PP
@ 2025-01-24 19:40 Benson Leung
  2025-01-28  8:17 ` Heikki Krogerus
  2025-02-03 15:18 ` Greg KH
  0 siblings, 2 replies; 4+ messages in thread
From: Benson Leung @ 2025-01-24 19:40 UTC (permalink / raw)
  To: heikki.krogerus, gregkh, abhishekpandit, dan.carpenter
  Cc: bleung, linux-usb, linux-kernel, akuchynski, ukaszb

Fixes these Smatch static checker warnings:
drivers/usb/typec/altmodes/thunderbolt.c:116 tbt_altmode_work() warn: why is zero skipped 'i'
drivers/usb/typec/altmodes/thunderbolt.c:147 tbt_enter_modes_ordered() warn: why is zero skipped 'i'
drivers/usb/typec/altmodes/thunderbolt.c:328 tbt_altmode_remove() warn: why is zero skipped 'i'

Fixes: 100e25738659 ("usb: typec: Add driver for Thunderbolt 3 Alternate Mode")

Signed-off-by: Benson Leung <bleung@chromium.org>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
---
 drivers/usb/typec/altmodes/thunderbolt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/typec/altmodes/thunderbolt.c b/drivers/usb/typec/altmodes/thunderbolt.c
index 1b475b1d98e7..94e47d30e598 100644
--- a/drivers/usb/typec/altmodes/thunderbolt.c
+++ b/drivers/usb/typec/altmodes/thunderbolt.c
@@ -112,7 +112,7 @@ static void tbt_altmode_work(struct work_struct *work)
 	return;
 
 disable_plugs:
-	for (int i = TYPEC_PLUG_SOP_PP; i > 0; --i) {
+	for (int i = TYPEC_PLUG_SOP_PP; i >= 0; --i) {
 		if (tbt->plug[i])
 			typec_altmode_put_plug(tbt->plug[i]);
 
@@ -143,7 +143,7 @@ static int tbt_enter_modes_ordered(struct typec_altmode *alt)
 	if (tbt->plug[TYPEC_PLUG_SOP_P]) {
 		ret = typec_cable_altmode_enter(alt, TYPEC_PLUG_SOP_P, NULL);
 		if (ret < 0) {
-			for (int i = TYPEC_PLUG_SOP_PP; i > 0; --i) {
+			for (int i = TYPEC_PLUG_SOP_PP; i >= 0; --i) {
 				if (tbt->plug[i])
 					typec_altmode_put_plug(tbt->plug[i]);
 
@@ -324,7 +324,7 @@ static void tbt_altmode_remove(struct typec_altmode *alt)
 {
 	struct tbt_altmode *tbt = typec_altmode_get_drvdata(alt);
 
-	for (int i = TYPEC_PLUG_SOP_PP; i > 0; --i) {
+	for (int i = TYPEC_PLUG_SOP_PP; i >= 0; --i) {
 		if (tbt->plug[i])
 			typec_altmode_put_plug(tbt->plug[i]);
 	}
-- 
2.48.1.262.g85cc9f2d1e-goog


^ permalink raw reply related	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2025-02-03 16:53 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-01-24 19:40 [PATCH 1/2] usb: typec: thunderbolt: Fix loops that iterate TYPEC_PLUG_SOP_P and TYPEC_PLUG_SOP_PP Benson Leung
2025-01-28  8:17 ` Heikki Krogerus
2025-02-03 15:18 ` Greg KH
2025-02-03 16:53   ` Benson Leung

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