spi/bitbang: (cosmetic) simplify list manipulation
authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>
Mon, 21 May 2012 11:25:17 +0000 (13:25 +0200)
committerGrant Likely <grant.likely@secretlab.ca>
Wed, 14 Nov 2012 15:38:15 +0000 (15:38 +0000)
Use a proper list iterator instead of an open-coded loop and remove a
superfluous list head initialisation.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

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