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| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-27 16:36:17 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-05-27 16:36:17 +0200 |
| commit | 5d9e4ea55ae19f9083b9c2c97cc912b823ee7ab4 (patch) | |
| tree | 1ffe2c5546d3891f72f4235a788240a520a2db02 /drivers/ide | |
| parent | [PATCH] i386: fix prevent_tail_call (diff) | |
| download | linux-5d9e4ea55ae19f9083b9c2c97cc912b823ee7ab4.tar.xz linux-5d9e4ea55ae19f9083b9c2c97cc912b823ee7ab4.zip | |
ide-cd: revert DMA mask test change
The change to require the DMA length to be only word-aligned was not
safe.
Diffstat (limited to 'drivers/ide')
| -rw-r--r-- | drivers/ide/ide-cd.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c index f0bd242e030f..78e3e7b24d7d 100644 --- a/drivers/ide/ide-cd.c +++ b/drivers/ide/ide-cd.c @@ -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; } |