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dmaengine: coh901318: fix integer overflow when shifting more than 32 places
authorColin Ian King <colin.king@canonical.com>
Thu, 29 Sep 2016 18:14:38 +0000 (19:14 +0100)
committerVinod Koul <vinod.koul@intel.com>
Fri, 30 Sep 2016 17:48:49 +0000 (23:18 +0530)
commit9f0df936b1b93a7fab5b9ed73009f43369c121ea
tree2ffa16bd0d3060553b282790183768e13b4d2a05tree | snapshot (tar.gz zip)
parent2cc40ee7ae30fa12c3ee3f18e6c0e81cced2cdcccommit | diff
dmaengine: coh901318: fix integer overflow when shifting more than 32 places

Currently U300_DMA_CHANNELS is set to 40, meaning that the shift of 1 can
be more than 32 places, which leads to a 32 bit integer overflow. Fix this
by using 1ULL instead of 1 before shifting it.  Also add braces on the
for-loop to keep with coding style conventions.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
drivers/dma/coh901318.c diff | blob | blame | history