[PATCH 2/4] video: vt8500: Fix invalid free of devm_ allocated data

From: Tushar Behera
Date: Thu Nov 22 2012 - 15:25:40 EST


While at it, also fix the related return statements.

Signed-off-by: Tushar Behera <tushar.behera@xxxxxxxxxx>
---
drivers/video/vt8500lcdfb.c | 15 +++------------
1 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/video/vt8500lcdfb.c b/drivers/video/vt8500lcdfb.c
index 5777adc..2438368 100644
--- a/drivers/video/vt8500lcdfb.c
+++ b/drivers/video/vt8500lcdfb.c
@@ -294,8 +294,7 @@ static int __devinit vt8500lcd_probe(struct platform_device *pdev)
+ sizeof(u32) * 16, GFP_KERNEL);
if (!fbi) {
dev_err(&pdev->dev, "Failed to initialize framebuffer device\n");
- ret = -ENOMEM;
- goto failed;
+ return -ENOMEM;
}

strcpy(fbi->fb.fix.id, "VT8500 LCD");
@@ -328,15 +327,13 @@ static int __devinit vt8500lcd_probe(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (res == NULL) {
dev_err(&pdev->dev, "no I/O memory resource defined\n");
- ret = -ENODEV;
- goto failed_fbi;
+ return -ENODEV;
}

res = request_mem_region(res->start, resource_size(res), "vt8500lcd");
if (res == NULL) {
dev_err(&pdev->dev, "failed to request I/O memory\n");
- ret = -EBUSY;
- goto failed_fbi;
+ return -EBUSY;
}

fbi->regbase = ioremap(res->start, resource_size(res));
@@ -466,10 +463,6 @@ failed_free_io:
iounmap(fbi->regbase);
failed_free_res:
release_mem_region(res->start, resource_size(res));
-failed_fbi:
- platform_set_drvdata(pdev, NULL);
- kfree(fbi);
-failed:
return ret;
}

@@ -501,8 +494,6 @@ static int __devexit vt8500lcd_remove(struct platform_device *pdev)
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));

- kfree(fbi);
-
return 0;
}

--
1.7.4.1

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