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path: root/drivers/mcb/mcb-core.c
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Diffstat (limited to 'drivers/mcb/mcb-core.c')
-rw-r--r--drivers/mcb/mcb-core.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c
index b73c6e7d28e4..6f2c8522e14a 100644
--- a/drivers/mcb/mcb-core.c
+++ b/drivers/mcb/mcb-core.c
@@ -61,21 +61,36 @@ static int mcb_probe(struct device *dev)
61 struct mcb_driver *mdrv = to_mcb_driver(dev->driver); 61 struct mcb_driver *mdrv = to_mcb_driver(dev->driver);
62 struct mcb_device *mdev = to_mcb_device(dev); 62 struct mcb_device *mdev = to_mcb_device(dev);
63 const struct mcb_device_id *found_id; 63 const struct mcb_device_id *found_id;
64 struct module *carrier_mod;
65 int ret;
64 66
65 found_id = mcb_match_id(mdrv->id_table, mdev); 67 found_id = mcb_match_id(mdrv->id_table, mdev);
66 if (!found_id) 68 if (!found_id)
67 return -ENODEV; 69 return -ENODEV;
68 70
69 return mdrv->probe(mdev, found_id); 71 carrier_mod = mdev->dev.parent->driver->owner;
72 if (!try_module_get(carrier_mod))
73 return -EINVAL;
74
75 get_device(dev);
76 ret = mdrv->probe(mdev, found_id);
77 if (ret)
78 module_put(carrier_mod);
79
80 return ret;
70} 81}
71 82
72static int mcb_remove(struct device *dev) 83static int mcb_remove(struct device *dev)
73{ 84{
74 struct mcb_driver *mdrv = to_mcb_driver(dev->driver); 85 struct mcb_driver *mdrv = to_mcb_driver(dev->driver);
75 struct mcb_device *mdev = to_mcb_device(dev); 86 struct mcb_device *mdev = to_mcb_device(dev);
87 struct module *carrier_mod;
76 88
77 mdrv->remove(mdev); 89 mdrv->remove(mdev);
78 90
91 carrier_mod = mdev->dev.parent->driver->owner;
92 module_put(carrier_mod);
93
79 put_device(&mdev->dev); 94 put_device(&mdev->dev);
80 95
81 return 0; 96 return 0;