diff options
| author | Xu Yang <xu.yang_2@nxp.com> | 2022-12-15 13:54:09 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-17 17:05:02 +0100 |
| commit | f96c0384047257365371a8ac217107c0371586f1 (patch) | |
| tree | c14149c6393653589ab826d7c47223e04555936d /drivers/usb/chipidea | |
| parent | 74622f0a81d0c2bcfc39f9192b788124e8c7f0af (diff) | |
| download | linux-stable-f96c0384047257365371a8ac217107c0371586f1.tar.gz linux-stable-f96c0384047257365371a8ac217107c0371586f1.tar.bz2 linux-stable-f96c0384047257365371a8ac217107c0371586f1.zip | |
usb: chipidea: core: fix possible constant 0 if use IS_ERR(ci->role_switch)
After successfully probed, ci->role_switch would only be NULL or a valid
pointer. IS_ERR(ci->role_switch) will always return 0. So no need to wrap
it with IS_ERR, otherwise the logic is wrong.
Fixes: e1b5d2bed67c ("usb: chipidea: core: handle usb role switch in a common way")
cc: <stable@vger.kernel.org>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20221215055409.3760523-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/chipidea')
| -rw-r--r-- | drivers/usb/chipidea/core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index 484b1cd23431..27c601296130 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -1294,12 +1294,12 @@ static void ci_extcon_wakeup_int(struct ci_hdrc *ci) cable_id = &ci->platdata->id_extcon; cable_vbus = &ci->platdata->vbus_extcon; - if ((!IS_ERR(cable_id->edev) || !IS_ERR(ci->role_switch)) + if ((!IS_ERR(cable_id->edev) || ci->role_switch) && ci->is_otg && (otgsc & OTGSC_IDIE) && (otgsc & OTGSC_IDIS)) ci_irq(ci); - if ((!IS_ERR(cable_vbus->edev) || !IS_ERR(ci->role_switch)) + if ((!IS_ERR(cable_vbus->edev) || ci->role_switch) && ci->is_otg && (otgsc & OTGSC_BSVIE) && (otgsc & OTGSC_BSVIS)) ci_irq(ci); |