[POWERPC] Sky Cpu and Nexus: check for create_proc_entry ret code
Adds checking of create_proc_entry call to prevent possible NULL pointer usage. Signed-off-by: NCyrill Gorcunov <gorcunov@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Brian Waite <waite@skycomputers.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NPaul Mackerras <paulus@samba.org>
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