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| author | Bartosz Golaszewski <bartosz.golaszewski@linaro.org> | 2024-02-08 17:40:17 +0100 |
|---|---|---|
| committer | Sasha Levin <sashal@kernel.org> | 2024-03-26 18:19:37 -0400 |
| commit | 988b77ba0df06b9c995d947ea29f0e13646f44f7 (patch) | |
| tree | 1dfe9dbe01d7ffe4aa327ed4649e0faa93ec5a85 /drivers/bluetooth | |
| parent | 0b3df53c9d3a1a24ab6d1c0b4b54c14b458f0b65 (diff) | |
| download | linux-988b77ba0df06b9c995d947ea29f0e13646f44f7.tar.gz linux-988b77ba0df06b9c995d947ea29f0e13646f44f7.tar.bz2 linux-988b77ba0df06b9c995d947ea29f0e13646f44f7.zip | |
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 f9abcc13b4bc..f2d4985e036e 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -2295,7 +2295,7 @@ 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"); @@ -2304,7 +2304,7 @@ 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)) @@ -2326,7 +2326,7 @@ 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; } |