diff options
| -rw-r--r-- | drivers/scsi/NCR5380.c | 16 | ||||
| -rw-r--r-- | drivers/scsi/atari_NCR5380.c | 16 |
2 files changed, 16 insertions, 16 deletions
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c index 0e00d487ceb4..5daab045c063 100644 --- a/drivers/scsi/NCR5380.c +++ b/drivers/scsi/NCR5380.c @@ -2302,6 +2302,9 @@ static bool list_del_cmd(struct list_head *haystack, * If cmd was not found at all then presumably it has already been completed, * in which case return SUCCESS to try to avoid further EH measures. * If the command has not completed yet, we must not fail to find it. + * + * The lock protects driver data structures, but EH handlers also use it + * to serialize their own execution and prevent their own re-entry. */ static int NCR5380_abort(struct scsi_cmnd *cmd) @@ -2338,14 +2341,11 @@ static int NCR5380_abort(struct scsi_cmnd *cmd) if (list_del_cmd(&hostdata->disconnected, cmd)) { dsprintk(NDEBUG_ABORT, instance, "abort: removed %p from disconnected list\n", cmd); - cmd->result = DID_ERROR << 16; - if (!hostdata->connected) - NCR5380_select(instance, cmd); - if (hostdata->connected != cmd) { - complete_cmd(instance, cmd); - result = FAILED; - goto out; - } + /* Can't call NCR5380_select() and send ABORT because that + * means releasing the lock. Need a bus reset. + */ + result = FAILED; + goto out; } if (hostdata->connected == cmd) { diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c index d382e71f4f4e..19a2fb3e6e7f 100644 --- a/drivers/scsi/atari_NCR5380.c +++ b/drivers/scsi/atari_NCR5380.c @@ -2497,6 +2497,9 @@ static bool list_del_cmd(struct list_head *haystack, * If cmd was not found at all then presumably it has already been completed, * in which case return SUCCESS to try to avoid further EH measures. * If the command has not completed yet, we must not fail to find it. + * + * The lock protects driver data structures, but EH handlers also use it + * to serialize their own execution and prevent their own re-entry. */ static int NCR5380_abort(struct scsi_cmnd *cmd) @@ -2533,14 +2536,11 @@ static int NCR5380_abort(struct scsi_cmnd *cmd) if (list_del_cmd(&hostdata->disconnected, cmd)) { dsprintk(NDEBUG_ABORT, instance, "abort: removed %p from disconnected list\n", cmd); - cmd->result = DID_ERROR << 16; - if (!hostdata->connected) - NCR5380_select(instance, cmd); - if (hostdata->connected != cmd) { - complete_cmd(instance, cmd); - result = FAILED; - goto out; - } + /* Can't call NCR5380_select() and send ABORT because that + * means releasing the lock. Need a bus reset. + */ + result = FAILED; + goto out; } if (hostdata->connected == cmd) { |