diff options
| author | James Bottomley <James.Bottomley@steeleye.com> | 2005-05-17 21:09:52 -0500 |
|---|---|---|
| committer | James Bottomley <jejb@titanic.(none)> | 2005-05-20 15:54:43 -0500 |
| commit | fb3089dfb58bf07992252b42e77c6f35d45dff5e (patch) | |
| tree | 4626cee6ff060843a6d717156d3a119a8cb4b482 /drivers/scsi/aic7xxx/aic7xxx_osm.c | |
| parent | c7525233d2df39b95552f6f49c6b390a9c4d2e80 (diff) | |
[SCSI] aic7xxx: add back locking
Tampering with the settings has to be done under the host lock ...
slave_alloc isn't called under any lock, so this has to be done
explicitly.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aic7xxx/aic7xxx_osm.c')
| -rw-r--r-- | drivers/scsi/aic7xxx/aic7xxx_osm.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index c03f2948607..b216de41bff 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -645,7 +645,9 @@ ahc_linux_slave_alloc(struct scsi_device *device) struct ahc_linux_target *targ; struct scsi_target *starget = device->sdev_target; struct ahc_linux_device *dev; - u_int target_offset; + unsigned int target_offset; + unsigned long flags; + int retval = -ENOMEM; target_offset = starget->id; if (starget->channel != 0) @@ -654,12 +656,14 @@ ahc_linux_slave_alloc(struct scsi_device *device) ahc = *((struct ahc_softc **)device->host->hostdata); if (bootverbose) printf("%s: Slave Alloc %d\n", ahc_name(ahc), device->id); + ahc_lock(ahc, &flags); targ = ahc->platform_data->targets[target_offset]; if (targ == NULL) { targ = ahc_linux_alloc_target(ahc, starget->channel, starget->id); struct seeprom_config *sc = ahc->seep_config; if (targ == NULL) - return -ENOMEM; + goto out; + if (sc) { unsigned short scsirate; struct ahc_devinfo devinfo; @@ -701,10 +705,13 @@ ahc_linux_slave_alloc(struct scsi_device *device) if (dev == NULL) { dev = ahc_linux_alloc_device(ahc, targ, device->lun); if (dev == NULL) - return -ENOMEM; + goto out; } + retval = 0; - return 0; + out: + ahc_unlock(ahc, &flags); + return retval; } static int |