UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

usb: phy: drop kfree of devm_kzalloc's data 

Using kfree to free data allocated with devm_kzalloc causes double frees.

The Coccinelle semantic patch that fixes this problem is as follows:

// <smpl>
@@
expression x;
@@

x = devm_kzalloc(...)
...
?-kfree(x);
// </smpl>

Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Himangi Saraogi 2014-08-11 01:29:37 +05:30 committed by Felipe Balbi
parent 2c4e3dbf63
commit 0c5824083b
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/usb/phy/phy-gpio-vbus-usb.c
View File

@ -260,10 +260,8 @@ static int gpio_vbus_probe(struct platform_device *pdev)
gpio_vbus->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg),
GFP_KERNEL);
if (!gpio_vbus->phy.otg) {
kfree(gpio_vbus);
if (!gpio_vbus->phy.otg)
return -ENOMEM;
}
platform_set_drvdata(pdev, gpio_vbus);
gpio_vbus->dev = &pdev->dev;