fsldma: Fix cookie issues
fsl_dma_update_completed_cookie() appears to calculate the last completed cookie incorrectly in the corner case where DMA on cookie 1 is in progress just following a cookie wrap. Signed-off-by: NSteven J. Magnani <steve@digidescorp.com> Acked-by: NIra W. Snyder <iws@ovro.caltech.edu> [dan.j.williams@intel.com: fix an integer overflow warning with INT_MAX] Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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