genirq/irq_sim: Shrink code by using <linux/cleanup.h> helpers
Use the new __free() mechanism to remove all gotos and simplify the error paths. Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20240122124243.44002-5-brgl@bgdev.pl
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@ -4,6 +4,7 @@
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* Copyright (C) 2020 Bartosz Golaszewski <bgolaszewski@baylibre.com>
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*/
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#include <linux/cleanup.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/irq_sim.h>
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@ -163,33 +164,27 @@ static const struct irq_domain_ops irq_sim_domain_ops = {
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struct irq_domain *irq_domain_create_sim(struct fwnode_handle *fwnode,
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unsigned int num_irqs)
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{
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struct irq_sim_work_ctx *work_ctx;
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struct irq_sim_work_ctx *work_ctx __free(kfree) =
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kmalloc(sizeof(*work_ctx), GFP_KERNEL);
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work_ctx = kmalloc(sizeof(*work_ctx), GFP_KERNEL);
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if (!work_ctx)
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goto err_out;
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return ERR_PTR(-ENOMEM);
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work_ctx->pending = bitmap_zalloc(num_irqs, GFP_KERNEL);
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if (!work_ctx->pending)
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goto err_free_work_ctx;
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unsigned long *pending __free(bitmap) = bitmap_zalloc(num_irqs, GFP_KERNEL);
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if (!pending)
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return ERR_PTR(-ENOMEM);
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work_ctx->domain = irq_domain_create_linear(fwnode, num_irqs,
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&irq_sim_domain_ops,
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work_ctx);
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if (!work_ctx->domain)
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goto err_free_bitmap;
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return ERR_PTR(-ENOMEM);
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work_ctx->irq_count = num_irqs;
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work_ctx->work = IRQ_WORK_INIT_HARD(irq_sim_handle_irq);
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work_ctx->pending = no_free_ptr(pending);
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return work_ctx->domain;
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err_free_bitmap:
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bitmap_free(work_ctx->pending);
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err_free_work_ctx:
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kfree(work_ctx);
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err_out:
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return ERR_PTR(-ENOMEM);
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return no_free_ptr(work_ctx)->domain;
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}
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EXPORT_SYMBOL_GPL(irq_domain_create_sim);
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