From 368d290ba2a66338303b5d3998b182e404a9eb38 Mon Sep 17 00:00:00 2001 From: Dirk Hohndel Date: Tue, 30 Oct 2007 13:02:44 +0100 Subject: [PATCH] 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 Signed-off-by: Jiri Kosina --- drivers/hid/hid-input.c | 18 ++++++++++++++---- 1 file 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); -- 2.20.1