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| author | Takashi Iwai <tiwai@suse.de> | 2008-12-19 08:22:57 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2008-12-19 08:22:57 +0100 |
| commit | 0ff555192a8d20385d49d1c420e2e8d409b3c0da (patch) | |
| tree | b6e4b6cae1028a310a3488ebf745954c51694bfc /include/scsi/scsi_tcq.h | |
| parent | 3218c178b41b420cb7e0d120c7a137a3969242e5 (diff) | |
| parent | 9e43f0de690211cf7153b5f3ec251bc315647ada (diff) | |
Merge branch 'fix/hda' into topic/hda
Diffstat (limited to 'include/scsi/scsi_tcq.h')
| -rw-r--r-- | include/scsi/scsi_tcq.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h index cf4c219c0b5c..17231385cb37 100644 --- a/include/scsi/scsi_tcq.h +++ b/include/scsi/scsi_tcq.h @@ -140,8 +140,18 @@ static inline struct scsi_cmnd *scsi_find_tag(struct scsi_device *sdev, int tag) */ static inline int scsi_init_shared_tag_map(struct Scsi_Host *shost, int depth) { - shost->bqt = blk_init_tags(depth); - return shost->bqt ? 0 : -ENOMEM; + /* + * If the shared tag map isn't already initialized, do it now. + * This saves callers from having to check ->bqt when setting up + * devices on the shared host (for libata) + */ + if (!shost->bqt) { + shost->bqt = blk_init_tags(depth); + if (!shost->bqt) + return -ENOMEM; + } + + return 0; } /** |