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| author | Takashi Iwai <tiwai@suse.de> | 2012-08-03 12:59:38 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2012-08-03 12:59:38 +0200 |
| commit | d30a0d839a5a282e43353fee53d5dc70db5eceda (patch) | |
| tree | 189a91615be3174a9ff8b20937359d11298433af /include/scsi/scsi_cmnd.h | |
| parent | ALSA: emu10k1: Avoid access to invalid pages when period=1 (diff) | |
| parent | ALSA: isa: Move snd_legacy_find_free_ioport to initval.h (diff) | |
| download | linux-d30a0d839a5a282e43353fee53d5dc70db5eceda.tar.xz linux-d30a0d839a5a282e43353fee53d5dc70db5eceda.zip | |
Merge branch 'topic/next' into for-next
Diffstat (limited to 'include/scsi/scsi_cmnd.h')
| -rw-r--r-- | include/scsi/scsi_cmnd.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index 1e1198546c72..ac06cc595890 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -134,10 +134,16 @@ struct scsi_cmnd { static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd) { + struct scsi_driver **sdp; + if (!cmd->request->rq_disk) return NULL; - return *(struct scsi_driver **)cmd->request->rq_disk->private_data; + sdp = (struct scsi_driver **)cmd->request->rq_disk->private_data; + if (!sdp) + return NULL; + + return *sdp; } extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t); |