Commit 5d9e4ea5 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

ide-cd: revert DMA mask test change 

The change to require the DMA length to be only word-aligned was not
safe.
parent d68b8622

drivers/ide/ide-cd.c

+4 −1
Original line number Diff line number Diff line
@@ -1932,8 +1932,11 @@ static ide_startstop_t cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) 


		/*

		 * check if dma is safe

		 *

		 * NOTE! The "len" and "addr" checks should possibly have

		 * separate masks.

		 */

		if ((rq->data_len & 3) || (addr & mask))

		if ((rq->data_len & mask) || (addr & mask))

			info->dma = 0;

	}

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