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usb: typec: thunderbolt: Fix loops that iterate TYPEC_PLUG_SOP_P and TYPEC_PLUG_SOP_PP

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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: 100e257386 ("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>
This commit is contained in:
Benson Leung 2025-01-24 19:40:23 +00:00 committed by Greg Kroah-Hartman
parent 51333bfbf1
commit b51c1e8d2f
1 changed files with 3 additions and 3 deletions
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6
drivers/usb/typec/altmodes/thunderbolt.c
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@ -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]);
}