1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
Date: Thu, 30 May 2013 10:22:12 +0800
From: Libo Chen <clbchenlibo.chen@huawei.com>
Subject: [PATCH RESEND 1/2] mtd: bcm47: convert kzalloc to avoid invalid access
mtd is just member of bcm47xxsflash, so we should free bcm47xxsflash not its member.
So I use devm_kazlloc instead of kazlloc to avoid it.
* Changelog:
convert to devm_kzalloc
Signed-off-by: Libo chen <libo.chen@huawei.com>
Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com>
---
drivers/mtd/devices/bcm47xxsflash.c | 16 ++++------------
1 files changed, 4 insertions(+), 12 deletions(-)
--- a/drivers/mtd/devices/bcm47xxsflash.c
+++ b/drivers/mtd/devices/bcm47xxsflash.c
@@ -278,11 +278,9 @@ static int bcm47xxsflash_bcma_probe(stru
struct bcm47xxsflash *b47s;
int err;
- b47s = kzalloc(sizeof(*b47s), GFP_KERNEL);
- if (!b47s) {
- err = -ENOMEM;
- goto out;
- }
+ b47s = devm_kzalloc(&pdev->dev, sizeof(*b47s), GFP_KERNEL);
+ if (!b47s)
+ return -ENOMEM;
sflash->priv = b47s;
b47s->bcma_cc = container_of(sflash, struct bcma_drv_cc, sflash);
@@ -307,18 +305,13 @@ static int bcm47xxsflash_bcma_probe(stru
err = mtd_device_parse_register(&b47s->mtd, probes, NULL, NULL, 0);
if (err) {
pr_err("Failed to register MTD device: %d\n", err);
- goto err_dev_reg;
+ return err;
}
if (bcm47xxsflash_poll(b47s, HZ / 10))
pr_warn("Serial flash busy\n");
return 0;
-
-err_dev_reg:
- kfree(&b47s->mtd);
-out:
- return err;
}
static int bcm47xxsflash_bcma_remove(struct platform_device *pdev)
@@ -327,7 +320,6 @@ static int bcm47xxsflash_bcma_remove(str
struct bcm47xxsflash *b47s = sflash->priv;
mtd_device_unregister(&b47s->mtd);
- kfree(b47s);
return 0;
}
|
