diff options
| author | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-02-08 19:40:17 +0300 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2024-03-27 01:20:40 +0300 |
| commit | a96738eb215f4f685b16f7f19532fd0342dfdb51 (patch) | |
| tree | 2c769a632c5fdace1cf8b9b20de3b9808f1f21f7 /drivers/bluetooth | |
| parent | 653a17a99d752ffde175d4bc96154f2a3642f400 (diff) | |
| download | linux-a96738eb215f4f685b16f7f19532fd0342dfdb51.tar.xz | |
Bluetooth: hci_qca: don't use IS_ERR_OR_NULL() with gpiod_get_optional()
[ Upstream commit 56d074d26c5828773b00b2185dd7e1d08273b8e8 ]
The optional variants for the gpiod_get() family of functions return NULL
if the GPIO in question is not associated with this device. They return
ERR_PTR() on any other error. NULL descriptors are graciously handled by
GPIOLIB and can be safely passed to any of the GPIO consumer interfaces
as they will return 0 and act as if the function succeeded. If one is
using the optional variant, then there's no point in checking for NULL.
Fixes: 6845667146a2 ("Bluetooth: hci_qca: Fix NULL vs IS_ERR_OR_NULL check in qca_serdev_probe")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/bluetooth')
| -rw-r--r-- | drivers/bluetooth/hci_qca.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 8bfef7f81b41..2acda547f4f3 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -2254,7 +2254,7 @@ static int qca_serdev_probe(struct serdev_device *serdev) qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable", GPIOD_OUT_LOW); - if (IS_ERR_OR_NULL(qcadev->bt_en) && + if (IS_ERR(qcadev->bt_en) && (data->soc_type == QCA_WCN6750 || data->soc_type == QCA_WCN6855)) { dev_err(&serdev->dev, "failed to acquire BT_EN gpio\n"); @@ -2263,7 +2263,7 @@ static int qca_serdev_probe(struct serdev_device *serdev) qcadev->sw_ctrl = devm_gpiod_get_optional(&serdev->dev, "swctrl", GPIOD_IN); - if (IS_ERR_OR_NULL(qcadev->sw_ctrl) && + if (IS_ERR(qcadev->sw_ctrl) && (data->soc_type == QCA_WCN6750 || data->soc_type == QCA_WCN6855 || data->soc_type == QCA_WCN7850)) @@ -2285,7 +2285,7 @@ static int qca_serdev_probe(struct serdev_device *serdev) default: qcadev->bt_en = devm_gpiod_get_optional(&serdev->dev, "enable", GPIOD_OUT_LOW); - if (IS_ERR_OR_NULL(qcadev->bt_en)) { + if (IS_ERR(qcadev->bt_en)) { dev_warn(&serdev->dev, "failed to acquire enable gpio\n"); power_ctrl_enabled = false; } |