Author: mav
Date: Thu Apr  4 19:04:15 2013
New Revision: 249105
URL: http://svnweb.freebsd.org/changeset/base/249105

Log:
  MFprojects/camlock r248930:
  Remove extra NULL checks. d_drv1 can never be NULL during periph life cycle.
  
  MFC after:    2 weeks

Modified:
  head/sys/cam/ata/ata_da.c
  head/sys/cam/scsi/scsi_cd.c
  head/sys/cam/scsi/scsi_da.c

Modified: head/sys/cam/ata/ata_da.c
==============================================================================
--- head/sys/cam/ata/ata_da.c   Thu Apr  4 18:59:29 2013        (r249104)
+++ head/sys/cam/ata/ata_da.c   Thu Apr  4 19:04:15 2013        (r249105)
@@ -527,10 +527,6 @@ adaopen(struct disk *dp)
        int error;
 
        periph = (struct cam_periph *)dp->d_drv1;
-       if (periph == NULL) {
-               return (ENXIO); 
-       }
-
        if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
                return(ENXIO);
        }
@@ -566,9 +562,6 @@ adaclose(struct disk *dp)
        union ccb *ccb;
 
        periph = (struct cam_periph *)dp->d_drv1;
-       if (periph == NULL)
-               return (ENXIO); 
-
        cam_periph_lock(periph);
        if (cam_periph_hold(periph, PRIBIO) != 0) {
                cam_periph_unlock(periph);
@@ -646,10 +639,6 @@ adastrategy(struct bio *bp)
        struct ada_softc *softc;
        
        periph = (struct cam_periph *)bp->bio_disk->d_drv1;
-       if (periph == NULL) {
-               biofinish(bp, NULL, ENXIO);
-               return;
-       }
        softc = (struct ada_softc *)periph->softc;
 
        cam_periph_lock(periph);
@@ -704,8 +693,6 @@ adadump(void *arg, void *virtual, vm_off
 
        dp = arg;
        periph = dp->d_drv1;
-       if (periph == NULL)
-               return (ENXIO);
        softc = (struct ada_softc *)periph->softc;
        cam_periph_lock(periph);
        secsize = softc->params.secsize;
@@ -1038,9 +1025,6 @@ adagetattr(struct bio *bp)
        struct cam_periph *periph;
 
        periph = (struct cam_periph *)bp->bio_disk->d_drv1;
-       if (periph == NULL)
-               return (ENXIO);
-
        cam_periph_lock(periph);
        ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
            periph->path);

Modified: head/sys/cam/scsi/scsi_cd.c
==============================================================================
--- head/sys/cam/scsi/scsi_cd.c Thu Apr  4 18:59:29 2013        (r249104)
+++ head/sys/cam/scsi/scsi_cd.c Thu Apr  4 19:04:15 2013        (r249105)
@@ -386,7 +386,6 @@ cddiskgonecb(struct disk *dp)
        struct cam_periph *periph;
 
        periph = (struct cam_periph *)dp->d_drv1;
-
        cam_periph_release(periph);
 }
 
@@ -1073,9 +1072,6 @@ cdopen(struct disk *dp)
        int error;
 
        periph = (struct cam_periph *)dp->d_drv1;
-       if (periph == NULL)
-               return (ENXIO);
-
        softc = (struct cd_softc *)periph->softc;
 
        if (cam_periph_acquire(periph) != CAM_REQ_CMP)
@@ -1120,9 +1116,6 @@ cdclose(struct disk *dp)
        struct  cd_softc *softc;
 
        periph = (struct cam_periph *)dp->d_drv1;
-       if (periph == NULL)
-               return (ENXIO); 
-
        softc = (struct cd_softc *)periph->softc;
 
        cam_periph_lock(periph);
@@ -1473,11 +1466,6 @@ cdstrategy(struct bio *bp)
        struct cd_softc *softc;
 
        periph = (struct cam_periph *)bp->bio_disk->d_drv1;
-       if (periph == NULL) {
-               biofinish(bp, NULL, ENXIO);
-               return;
-       }
-
        cam_periph_lock(periph);
        CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
            ("cdstrategy(%p)\n", bp));
@@ -1972,9 +1960,6 @@ cdioctl(struct disk *dp, u_long cmd, voi
        int     nocopyout, error = 0;
 
        periph = (struct cam_periph *)dp->d_drv1;
-       if (periph == NULL)
-               return(ENXIO);  
-
        cam_periph_lock(periph);
 
        softc = (struct cd_softc *)periph->softc;

Modified: head/sys/cam/scsi/scsi_da.c
==============================================================================
--- head/sys/cam/scsi/scsi_da.c Thu Apr  4 18:59:29 2013        (r249104)
+++ head/sys/cam/scsi/scsi_da.c Thu Apr  4 19:04:15 2013        (r249105)
@@ -962,10 +962,6 @@ daopen(struct disk *dp)
        int error;
 
        periph = (struct cam_periph *)dp->d_drv1;
-       if (periph == NULL) {
-               return (ENXIO); 
-       }
-
        if (cam_periph_acquire(periph) != CAM_REQ_CMP) {
                return (ENXIO);
        }
@@ -1027,9 +1023,6 @@ daclose(struct disk *dp)
        struct  da_softc *softc;
 
        periph = (struct cam_periph *)dp->d_drv1;
-       if (periph == NULL)
-               return (0);     
-
        cam_periph_lock(periph);
        if (cam_periph_hold(periph, PRIBIO) != 0) {
                cam_periph_unlock(periph);
@@ -1118,10 +1111,6 @@ dastrategy(struct bio *bp)
        struct da_softc *softc;
        
        periph = (struct cam_periph *)bp->bio_disk->d_drv1;
-       if (periph == NULL) {
-               biofinish(bp, NULL, ENXIO);
-               return;
-       }
        softc = (struct da_softc *)periph->softc;
 
        cam_periph_lock(periph);
@@ -1174,8 +1163,6 @@ dadump(void *arg, void *virtual, vm_offs
 
        dp = arg;
        periph = dp->d_drv1;
-       if (periph == NULL)
-               return (ENXIO);
        softc = (struct da_softc *)periph->softc;
        cam_periph_lock(periph);
        secsize = softc->params.secsize;
@@ -1250,9 +1237,6 @@ dagetattr(struct bio *bp)
        struct cam_periph *periph;
 
        periph = (struct cam_periph *)bp->bio_disk->d_drv1;
-       if (periph == NULL)
-               return (ENXIO);
-
        cam_periph_lock(periph);
        ret = xpt_getattr(bp->bio_data, bp->bio_length, bp->bio_attribute,
            periph->path);
@@ -1295,7 +1279,6 @@ dadiskgonecb(struct disk *dp)
        struct cam_periph *periph;
 
        periph = (struct cam_periph *)dp->d_drv1;
-
        cam_periph_release(periph);
 }
 
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