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author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-06-09 13:01:16 +0900 |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2015-06-10 14:49:52 +0200 |
commit | 323de9efdf3e75d1dfb48003a52e59d6d9d4c7a5 (patch) | |
tree | 2dbda67827f15a22bfd1b2cc209307264f0c69a3 /drivers/pinctrl/mediatek/pinctrl-mtk-common.c | |
parent | e73ac02dc132dcef1add62a1fac3e77a7ce17371 (diff) | |
download | talos-op-linux-323de9efdf3e75d1dfb48003a52e59d6d9d4c7a5.tar.gz talos-op-linux-323de9efdf3e75d1dfb48003a52e59d6d9d4c7a5.zip |
pinctrl: make pinctrl_register() return proper error code
Currently, pinctrl_register() just returns NULL on error, so the
callers can not know the exact reason of the failure.
Some of the pinctrl drivers return -EINVAL, some -ENODEV, and some
-ENOMEM on error of pinctrl_register(), although the error code
might be different from the real cause of the error.
This commit reworks pinctrl_register() to return the appropriate
error code and modifies all of the pinctrl drivers to use IS_ERR()
for the error checking and PTR_ERR() for getting the error code.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Ray Jui <rjui@broadcom.com>
Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Acked-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Acked-by: Wei Chen <Wei.Chen@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/mediatek/pinctrl-mtk-common.c')
-rw-r--r-- | drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c index f206a54a3ca4..35f7b014af65 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c @@ -1269,9 +1269,9 @@ int mtk_pctrl_init(struct platform_device *pdev, mtk_pctrl_desc.npins = pctl->devdata->npins; pctl->dev = &pdev->dev; pctl->pctl_dev = pinctrl_register(&mtk_pctrl_desc, &pdev->dev, pctl); - if (!pctl->pctl_dev) { + if (IS_ERR(pctl->pctl_dev)) { dev_err(&pdev->dev, "couldn't register pinctrl driver\n"); - return -EINVAL; + return PTR_ERR(pctl->pctl_dev); } pctl->chip = devm_kzalloc(&pdev->dev, sizeof(*pctl->chip), GFP_KERNEL); |