hvc_xen: NULL dereference on allocation failure
If kzalloc() returns a NULL here, we pass a NULL to xencons_disconnect_backend() which will cause an Oops. Also I removed the __GFP_ZERO while I was at it since kzalloc() implies __GFP_ZERO. CC: stable@kernel.org Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
parent
d79d5959a0
commit
201a52bea9
|
@ -430,9 +430,9 @@ static int __devinit xencons_probe(struct xenbus_device *dev,
|
|||
if (devid == 0)
|
||||
return -ENODEV;
|
||||
|
||||
info = kzalloc(sizeof(struct xencons_info), GFP_KERNEL | __GFP_ZERO);
|
||||
info = kzalloc(sizeof(struct xencons_info), GFP_KERNEL);
|
||||
if (!info)
|
||||
goto error_nomem;
|
||||
return -ENOMEM;
|
||||
dev_set_drvdata(&dev->dev, info);
|
||||
info->xbdev = dev;
|
||||
info->vtermno = xenbus_devid_to_vtermno(devid);
|
||||
|
|
Loading…
Reference in New Issue