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spmi_controller_alloc() currently returns NULL to all types of errors, which can be improved. Use appropriate error code in returns and pass the errors from used functions where possible. Signed-off-by: Fei Shao <fshao@chromium.org> Link: https://lore.kernel.org/r/20230824104101.4083400-6-fshao@chromium.org Signed-off-by: Stephen Boyd <sboyd@kernel.org> Link: https://lore.kernel.org/r/20231206231733.4031901-8-sboyd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright 2023 Google LLC.
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*/
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#include <linux/device.h>
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#include <linux/spmi.h>
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static void devm_spmi_controller_release(struct device *parent, void *res)
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{
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spmi_controller_put(*(struct spmi_controller **)res);
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}
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struct spmi_controller *devm_spmi_controller_alloc(struct device *parent, size_t size)
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{
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struct spmi_controller **ptr, *ctrl;
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ptr = devres_alloc(devm_spmi_controller_release, sizeof(*ptr), GFP_KERNEL);
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if (!ptr)
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return ERR_PTR(-ENOMEM);
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ctrl = spmi_controller_alloc(parent, size);
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if (IS_ERR(ctrl)) {
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devres_free(ptr);
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return ctrl;
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}
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*ptr = ctrl;
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devres_add(parent, ptr);
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return ctrl;
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}
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EXPORT_SYMBOL_GPL(devm_spmi_controller_alloc);
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static void devm_spmi_controller_remove(struct device *parent, void *res)
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{
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spmi_controller_remove(*(struct spmi_controller **)res);
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}
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int devm_spmi_controller_add(struct device *parent, struct spmi_controller *ctrl)
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{
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struct spmi_controller **ptr;
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int ret;
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ptr = devres_alloc(devm_spmi_controller_remove, sizeof(*ptr), GFP_KERNEL);
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if (!ptr)
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return -ENOMEM;
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ret = spmi_controller_add(ctrl);
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if (ret) {
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devres_free(ptr);
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return ret;
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}
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*ptr = ctrl;
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devres_add(parent, ptr);
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return 0;
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}
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EXPORT_SYMBOL_GPL(devm_spmi_controller_add);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("SPMI devres helpers");
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