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660739c6bc
In the case that the device cursor was the first in the list of cursors the window knew about, unsetting the cursor could lead to a segfault due to pPrev being NULL. Instead catch the condition and correctly remove the node from the list. Since there is no cursor now set on the device, we simply return success as the parent windows cursor will propogate down later. Signed-off-by: Peter Hutterer <peter@cs.unisa.edu.au>