From: Colin King <[email protected]>
Date: Wed,  3 May 2017 14:50:40 +0100

> From: Colin Ian King <[email protected]>
> 
> head is previously null checked and so the 2nd null check on head
> is redundant and therefore can be removed.
> 
> Detected by CoverityScan, CID#1399505 ("Logically dead code")
> 
> Signed-off-by: Colin Ian King <[email protected]>

Applied.

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