ide-cd: revert DMA mask test change

The change to require the DMA length to be only word-aligned was not
safe.

+4 -1
+4 -1
drivers/ide/ide-cd.c
··· 1932 1932 1933 1933 /* 1934 1934 * check if dma is safe 1935 + * 1936 + * NOTE! The "len" and "addr" checks should possibly have 1937 + * separate masks. 1935 1938 */ 1936 - if ((rq->data_len & 3) || (addr & mask)) 1939 + if ((rq->data_len & mask) || (addr & mask)) 1937 1940 info->dma = 0; 1938 1941 } 1939 1942