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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-04-18 17:42:20 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-04-18 17:42:20 +0200 |
| commit | f505d49ffd25ed062e76ffd17568d3937fcd338c (patch) | |
| tree | 1ffafdccffd2373ec8b5f60bb72da841d4d200d8 | |
| parent | d5f840bf74c09ca5a31e518c9d984999926b5f44 (diff) | |
| download | op-kernel-dev-f505d49ffd25ed062e76ffd17568d3937fcd338c.zip op-kernel-dev-f505d49ffd25ed062e76ffd17568d3937fcd338c.tar.gz | |
ide: fix barriers support
Freeing non-slab objects is bad and results in an oops. Fix it.
Reported-and-tested-by: Andrew Price <andy@andrewprice.me.uk>
Cc: Theodore Tso <tytso@mit.edu>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| -rw-r--r-- | drivers/ide/ide-io.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index 2ae02b8..35dc38d 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -102,11 +102,14 @@ void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err) drive->dev_flags |= IDE_DFLAG_PARKED; } - if (rq && rq->cmd_type == REQ_TYPE_ATA_TASKFILE) - memcpy(rq->special, cmd, sizeof(*cmd)); + if (rq && rq->cmd_type == REQ_TYPE_ATA_TASKFILE) { + struct ide_cmd *orig_cmd = rq->special; - if (cmd->tf_flags & IDE_TFLAG_DYN) - kfree(cmd); + if (cmd->tf_flags & IDE_TFLAG_DYN) + kfree(orig_cmd); + else + memcpy(orig_cmd, cmd, sizeof(*cmd)); + } } /* obsolete, blk_rq_bytes() should be used instead */ |
