drivers/rapidio/devices/tsi721_dma.c: adjust six checks for null pointers
checkpatch pointed out the following: Comparison to NULL could be written !... Thus fix the affected source code places. Link: http://lkml.kernel.org/r/c3e79a1a-891e-cb62-990f-bd99839311b9@users.sourceforge.netSigned-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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