linux-kernel - [PATCH v2] lib/string_helpers: fix not adding strarray to device's resource list.

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Message-Id: <20220506073623.2679-1-puyou.lu@gmail.com>
Date:   Fri,  6 May 2022 15:36:22 +0800
From:   Puyou Lu <puyou.lu@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Puyou Lu <puyou.lu@...il.com>, Andy Shevchenko <andy@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Kees Cook <keescook@...omium.org>,
        Petr Mladek <pmladek@...e.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Chris Down <chris@...isdown.name>, linux-kernel@...r.kernel.org
Subject: [PATCH v2] lib/string_helpers: fix not adding strarray to device's resource list.

Add allocated strarray to device's resource list. This is a must to
automatically release strarray when the device disappears.

Fixes: acdb89b6c87a ("lib/string_helpers: Introduce managed variant of kasprintf_strarray()")
Signed-off-by: Puyou Lu <puyou.lu@...il.com>

---

Change since v1:
also set 'n' of strarray https://lore.kernel.org/lkml/20220506022845.26750-1-puyou.lu@gmail.com/

---
 lib/string_helpers.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/string_helpers.c b/lib/string_helpers.c
index 4f877e9551d5..5ed3beb066e6 100644
--- a/lib/string_helpers.c
+++ b/lib/string_helpers.c
@@ -757,6 +757,9 @@ char **devm_kasprintf_strarray(struct device *dev, const char *prefix, size_t n)
 		return ERR_PTR(-ENOMEM);
 	}
 
+	ptr->n = n;
+	devres_add(dev, ptr);
+
 	return ptr->array;
 }
 EXPORT_SYMBOL_GPL(devm_kasprintf_strarray);
-- 
2.17.1