linux-kernel - [PATCH] MIPS: SGI-IP30: Free some unused memory

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Message-Id: <f9475119cf8d7dc51f9f993ab6a4de40a2735ca1.1650720466.git.christophe.jaillet@wanadoo.fr>
Date:   Sat, 23 Apr 2022 15:27:58 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        linux-mips@...r.kernel.org
Subject: [PATCH] MIPS: SGI-IP30: Free some unused memory

platform_device_add_data() duplicates the memory it is passed. So we can
free some memory to save a few bytes that would remain unused otherwise.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 arch/mips/sgi-ip30/ip30-xtalk.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/mips/sgi-ip30/ip30-xtalk.c b/arch/mips/sgi-ip30/ip30-xtalk.c
index 8a2894645529..8129524421cb 100644
--- a/arch/mips/sgi-ip30/ip30-xtalk.c
+++ b/arch/mips/sgi-ip30/ip30-xtalk.c
@@ -63,6 +63,8 @@ static void bridge_platform_create(int widget, int masterwid)
 	}
 	platform_device_add_resources(pdev, &w1_res, 1);
 	platform_device_add_data(pdev, wd, sizeof(*wd));
+	/* platform_device_add_data() duplicates the data */
+	kfree(wd);
 	platform_device_add(pdev);
 
 	bd = kzalloc(sizeof(*bd), GFP_KERNEL);
@@ -92,6 +94,8 @@ static void bridge_platform_create(int widget, int masterwid)
 	bd->io_offset	= IP30_SWIN_BASE(widget);
 
 	platform_device_add_data(pdev, bd, sizeof(*bd));
+	/* platform_device_add_data() duplicates the data */
+	kfree(bd);
 	platform_device_add(pdev);
 	pr_info("xtalk:%x bridge widget\n", widget);
 	return;
-- 
2.32.0