linux-kernel - [PATCH 2/3] drivers/video/sm501fb.c: Convert release_resource to release_mem

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Message-Id: <1303503083-26170-2-git-send-email-julia@diku.dk>
Date:	Fri, 22 Apr 2011 22:11:22 +0200
From:	Julia Lawall <julia@...u.dk>
To:	Paul Mundt <lethal@...ux-sh.org>
Cc:	kernel-janitors@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>,
	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org
Subject: [PATCH 2/3] drivers/video/sm501fb.c: Convert release_resource to release_mem_region

Request_mem_region should be used with release_mem_region, not
release_resource.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@s exists@
expression e1,e2,e3,e4,e;
@@

*e4 = request_mem_region(e1,e2,e3)
... when != e4 = e
*release_resource(e4);
// </smpl>

Signed-off-by: Julia Lawall <julia@...u.dk>

---
 drivers/video/sm501fb.c |   24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/video/sm501fb.c b/drivers/video/sm501fb.c
index 56ef6b3..87f0be1 100644
--- a/drivers/video/sm501fb.c
+++ b/drivers/video/sm501fb.c
@@ -1625,22 +1625,22 @@ static int sm501fb_start(struct sm501fb_info *info,
 	return 0; /* everything is setup */
 
  err_mem_res:
-	release_resource(info->fbmem_res);
-	kfree(info->fbmem_res);
+	release_mem_region(info->fbmem_res->start,
+			   resource_size(info->fbmem_res));
 
  err_regs2d_map:
 	iounmap(info->regs2d);
 
  err_regs2d_res:
-	release_resource(info->regs2d_res);
-	kfree(info->regs2d_res);
+	release_mem_region(info->regs2d_res->start,
+			   resource_size(info->regs2d_res));
 
  err_regs_map:
 	iounmap(info->regs);
 
  err_regs_res:
-	release_resource(info->regs_res);
-	kfree(info->regs_res);
+	release_mem_region(info->regs_res->start,
+			   resource_size(info->regs_res));
 
  err_release:
 	return ret;
@@ -1652,16 +1652,16 @@ static void sm501fb_stop(struct sm501fb_info *info)
 	sm501_unit_power(info->dev->parent, SM501_GATE_DISPLAY, 0);
 
 	iounmap(info->fbmem);
-	release_resource(info->fbmem_res);
-	kfree(info->fbmem_res);
+	release_mem_region(info->fbmem_res->start,
+			   resource_size(info->fbmem_res));
 
 	iounmap(info->regs2d);
-	release_resource(info->regs2d_res);
-	kfree(info->regs2d_res);
+	release_mem_region(info->regs2d_res->start,
+			   resource_size(info->regs2d_res));
 
 	iounmap(info->regs);
-	release_resource(info->regs_res);
-	kfree(info->regs_res);
+	release_mem_region(info->regs_res->start,
+			   resource_size(info->regs_res));
 }
 
 static int sm501fb_init_fb(struct fb_info *fb,

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