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| author | Dirk Hohndel <hohndel@linux.intel.com> | 2007-10-30 13:02:44 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2007-10-31 13:30:35 +0100 |
| commit | 368d290ba2a66338303b5d3998b182e404a9eb38 (patch) | |
| tree | 8c26ffd8f36e1ef1f0533f20b0018919a029a83b | |
| parent | d624284b06f869dad87a70a8d0cad72fbf7527b9 (diff) | |
| download | linux-stable-368d290ba2a66338303b5d3998b182e404a9eb38.tar.gz linux-stable-368d290ba2a66338303b5d3998b182e404a9eb38.tar.bz2 linux-stable-368d290ba2a66338303b5d3998b182e404a9eb38.zip | |
HID: fix hidinput_connect ignoring retval from input_register_device
hidinput_connect() ignores retval from input_register_device(). Fix it
by properly undoing all the registrations that have been already done,
and return error.
Signed-off-by: Dirk Hohndel <hohndel@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| -rw-r--r-- | drivers/hid/hid-input.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index dd332f28e08c..71eb7693e453 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -1152,7 +1152,7 @@ int hidinput_connect(struct hid_device *hid) kfree(hidinput); input_free_device(input_dev); err_hid("Out of memory during hid input probe"); - return -1; + goto out_unwind; } input_set_drvdata(input_dev, hid); @@ -1186,15 +1186,25 @@ int hidinput_connect(struct hid_device *hid) * UGCI) cram a lot of unrelated inputs into the * same interface. */ hidinput->report = report; - input_register_device(hidinput->input); + if (input_register_device(hidinput->input)) + goto out_cleanup; hidinput = NULL; } } - if (hidinput) - input_register_device(hidinput->input); + if (hidinput && input_register_device(hidinput->input)) + goto out_cleanup; return 0; + +out_cleanup: + input_free_device(hidinput->input); + kfree(hidinput); +out_unwind: + /* unwind the ones we already registered */ + hidinput_disconnect(hid); + + return -1; } EXPORT_SYMBOL_GPL(hidinput_connect); |