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ipmi: Check that the device type is BMC when scanning device

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Just an added safety check.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
This commit is contained in:
Corey Minyard 2017-09-01 10:46:47 -05:00
parent f33e4df83e
commit eae4a36a68
1 changed files with 9 additions and 3 deletions
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12
drivers/char/ipmi/ipmi_msghandler.c
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@ -2433,9 +2433,11 @@ static const struct device_type bmc_device_type = {
static int __find_bmc_guid(struct device *dev, void *data)
{
unsigned char *id = data;
struct bmc_device *bmc = to_bmc_device(dev);
return memcmp(bmc->guid, id, 16) == 0;
if (dev->type != &bmc_device_type)
return 0;
return memcmp(to_bmc_device(dev)->guid, id, 16) == 0;
}
static struct bmc_device *ipmi_find_bmc_guid(struct device_driver *drv,
@ -2458,8 +2460,12 @@ struct prod_dev_id {
static int __find_bmc_prod_dev_id(struct device *dev, void *data)
{
struct prod_dev_id *id = data;
struct bmc_device *bmc = to_bmc_device(dev);
struct bmc_device *bmc;
if (dev->type != &bmc_device_type)
return 0;
bmc = to_bmc_device(dev);
return (bmc->id.product_id == id->product_id
&& bmc->id.device_id == id->device_id);
}