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Date: Sat, 28 Aug 2010 14:57:48 +0200 From: Stefan Achatz <erazor_de@...rs.sourceforge.net> To: Jiri Kosina <jkosina@...e.cz>, Stefan Achatz <erazor_de@...rs.sourceforge.net>, Stephen Rothwell <sfr@...b.auug.org.au>, Tejun Heo <tj@...nel.org>, linux-input@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] HID: roccat: Fixing race condition on initialization Fixed raced condition where event occurs before drvdata is set. Signed-off-by: Stefan Achatz <erazor_de@...rs.sourceforge.net> --- drivers/hid/hid-roccat-kone.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c index f776957..cfeab56 100644 --- a/drivers/hid/hid-roccat-kone.c +++ b/drivers/hid/hid-roccat-kone.c @@ -966,6 +966,10 @@ static int kone_raw_event(struct hid_device *hdev, struct hid_report *report, struct kone_device *kone = hid_get_drvdata(hdev); struct kone_mouse_event *event = (struct kone_mouse_event *)data; + /* possible race condition on initialization */ + if (!kone) + return 0; + /* keyboard events are always processed by default handler */ if (size != sizeof(struct kone_mouse_event)) return 0; -- 1.7.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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