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| author | Ingo Molnar <mingo@elte.hu> | 2008-01-02 17:25:34 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-01-02 13:11:06 -0800 |
| commit | ac40532ef0b8649e6f7f83859ea0de1c4ed08a19 (patch) | |
| tree | ca86d577fe7fe68ae28b7f7d020f86bc9fff5535 /drivers/scsi/sr.c | |
| parent | 158a962422e4a54dc256b6a9b9562f3d30d34d9c (diff) | |
| download | linux-3.10-ac40532ef0b8649e6f7f83859ea0de1c4ed08a19.tar.gz linux-3.10-ac40532ef0b8649e6f7f83859ea0de1c4ed08a19.tar.bz2 linux-3.10-ac40532ef0b8649e6f7f83859ea0de1c4ed08a19.zip | |
scsi: revert "[SCSI] Get rid of scsi_cmnd->done"
This reverts commit 6f5391c283d7fdcf24bf40786ea79061919d1e1d ("[SCSI]
Get rid of scsi_cmnd->done") that was supposed to be a cleanup commit,
but apparently it causes regressions:
Bug 9370 - v2.6.24-rc2-409-g9418d5d: attempt to access beyond end of device
http://bugzilla.kernel.org/show_bug.cgi?id=9370
this patch should be reintroduced in a more split-up form to make
testing of it easier.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/scsi/sr.c')
| -rw-r--r-- | drivers/scsi/sr.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c index c6199903114..a0c4e13d4da 100644 --- a/drivers/scsi/sr.c +++ b/drivers/scsi/sr.c @@ -78,7 +78,6 @@ MODULE_ALIAS_SCSI_DEVICE(TYPE_WORM); static int sr_probe(struct device *); static int sr_remove(struct device *); -static int sr_done(struct scsi_cmnd *); static struct scsi_driver sr_template = { .owner = THIS_MODULE, @@ -87,7 +86,6 @@ static struct scsi_driver sr_template = { .probe = sr_probe, .remove = sr_remove, }, - .done = sr_done, }; static unsigned long sr_index_bits[SR_DISKS / BITS_PER_LONG]; @@ -210,12 +208,12 @@ static int sr_media_change(struct cdrom_device_info *cdi, int slot) } /* - * sr_done is the interrupt routine for the device driver. + * rw_intr is the interrupt routine for the device driver. * - * It will be notified on the end of a SCSI read / write, and will take one + * It will be notified on the end of a SCSI read / write, and will take on * of several actions based on success or failure. */ -static int sr_done(struct scsi_cmnd *SCpnt) +static void rw_intr(struct scsi_cmnd * SCpnt) { int result = SCpnt->result; int this_count = SCpnt->request_bufflen; @@ -288,7 +286,12 @@ static int sr_done(struct scsi_cmnd *SCpnt) } } - return good_bytes; + /* + * This calls the generic completion function, now that we know + * how many actual sectors finished, and how many sectors we need + * to say have failed. + */ + scsi_io_completion(SCpnt, good_bytes); } static int sr_prep_fn(struct request_queue *q, struct request *rq) @@ -425,6 +428,12 @@ static int sr_prep_fn(struct request_queue *q, struct request *rq) SCpnt->timeout_per_command = timeout; /* + * This is the completion routine we use. This is matched in terms + * of capability to this function. + */ + SCpnt->done = rw_intr; + + /* * This indicates that the command is ready from our end to be * queued. */ |