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authorBenson Leung <bleung@chromium.org>2025-01-24 22:40:23 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-04-10 15:44:27 +0300
commitdd67fdbec7cf338736bc53207c5cc2cd4572a26f (patch)
tree595b116a884c26059ce555b4884f544b0f6131cd
parent531077193896a1eb81e5a5cfb905ca59c153c9e9 (diff)
downloadlinux-dd67fdbec7cf338736bc53207c5cc2cd4572a26f.tar.xz
usb: typec: thunderbolt: Fix loops that iterate TYPEC_PLUG_SOP_P and TYPEC_PLUG_SOP_PP
[ Upstream commit b51c1e8d2f49342b2087338c72511326fdb7b172 ] 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> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/Z5Psp615abaaId6J@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/usb/typec/altmodes/thunderbolt.c6
1 files 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]);
}