linux-kernel - [PATCH] driver core:firmware_class:fix memory leak of page pointers array

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Date:	Thu,  9 Jul 2009 08:16:31 +0800
From:	tom.leiming@...il.com
To:	greg@...ah.com
Cc:	linux-kernel@...r.kernel.org, catalin.marinas@....com,
	dwmw2@...radead.org, kay.sievers@...y.org,
	Ming Lei <tom.leiming@...il.com>
Subject: [PATCH] driver core:firmware_class:fix memory leak of page pointers array

From: Ming Lei <tom.leiming@...il.com>

The page pointers array is allocated in fw_realloc_buffer() called by
firmware_data_write(), and should be freed in release function of firmware
device.

Signed-off-by:Ming Lei <tom.leiming@...il.com>
Reported-by:Catalin Marinas <catalin.marinas@....com>
Acked-by: David Woodhouse <David.Woodhouse@...el.com>
---
 drivers/base/firmware_class.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index fc46653..2643366 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -180,7 +180,6 @@ static ssize_t firmware_loading_store(struct device *dev,
 				goto err;
 			}
 			/* Pages will be freed by vfree() */
-			fw_priv->pages = NULL;
 			fw_priv->page_array_size = 0;
 			fw_priv->nr_pages = 0;
 			complete(&fw_priv->completion);
-- 
1.6.0.GIT

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