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Message-Id: <20230812194457.6432-5-brgl@bgdev.pl>
Date: Sat, 12 Aug 2023 21:44:57 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Yury Norov <yury.norov@...il.com>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Rasmus Villemoes <linux@...musvillemoes.dk>,
Thomas Gleixner <tglx@...utronix.de>
Cc: linux-kernel@...r.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH 4/4] genirq/irq_sim: shrink code by using cleanup helpers
From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Use the new __free helper from linux/cleanup.h to remove all gotos and
simplify the error paths.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
kernel/irq/irq_sim.c | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)
diff --git a/kernel/irq/irq_sim.c b/kernel/irq/irq_sim.c
index a8b013d0c5be..202beb1169c9 100644
--- a/kernel/irq/irq_sim.c
+++ b/kernel/irq/irq_sim.c
@@ -4,6 +4,7 @@
* Copyright (C) 2020 Bartosz Golaszewski <bgolaszewski@...libre.com>
*/
+#include <linux/cleanup.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irq_sim.h>
@@ -170,34 +171,29 @@ static const struct irq_domain_ops irq_sim_domain_ops = {
struct irq_domain *irq_domain_create_sim(struct fwnode_handle *fwnode,
unsigned int num_irqs)
{
- struct irq_sim_work_ctx *work_ctx;
+ struct irq_sim_work_ctx *work_ctx __free(kfree) = NULL;
+ unsigned long *pending __free(bitmap) = NULL;
work_ctx = kmalloc(sizeof(*work_ctx), GFP_KERNEL);
if (!work_ctx)
- goto err_out;
+ return ERR_PTR(-ENOMEM);
- work_ctx->pending = bitmap_zalloc(num_irqs, GFP_KERNEL);
- if (!work_ctx->pending)
- goto err_free_work_ctx;
+ pending = bitmap_zalloc(num_irqs, GFP_KERNEL);
+ if (!pending)
+ return ERR_PTR(-ENOMEM);
work_ctx->domain = irq_domain_create_linear(fwnode, num_irqs,
&irq_sim_domain_ops,
work_ctx);
if (!work_ctx->domain)
- goto err_free_bitmap;
+ return ERR_PTR(-ENOMEM);
work_ctx->irq_count = num_irqs;
work_ctx->work = IRQ_WORK_INIT_HARD(irq_sim_handle_irq);
INIT_LIST_HEAD(&work_ctx->irqs);
+ work_ctx->pending = no_free_ptr(pending);
- return work_ctx->domain;
-
-err_free_bitmap:
- bitmap_free(work_ctx->pending);
-err_free_work_ctx:
- kfree(work_ctx);
-err_out:
- return ERR_PTR(-ENOMEM);
+ return no_free_ptr(work_ctx)->domain;
}
EXPORT_SYMBOL_GPL(irq_domain_create_sim);
--
2.39.2
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