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[SCSI] a4000t, zorro7xx, mvme16x, bvme6000,sim710: xxx_device_remove seems buggy

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Fix drivers misusing dev_to_shost

Some drivers were using dev_to_shost to go from a struct device to the
corresponding shost.  Unfortunately, dev_to_shost only looks up the tree
to find an shost (it's designed to go from a scsi_device or a
scsi_target to the parent scsi_host), and these drivers were calling it
with the parent of the scsi_host.

I've fixed this by saving a pointer to the Scsi_Host in the drvdata,
which matches what most scsi drivers do.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Matthew Wilcox
2007-07-17 13:38:03 -06:00
committed by James Bottomley
parent 88e2f98e1b
commit 3ac709c113
5 changed files with 10 additions and 5 deletions
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3
drivers/scsi/sim710.c
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@@ -139,6 +139,7 @@ sim710_probe_common(struct device *dev, unsigned long base_addr,
goto out_put_host;
}
dev_set_drvdata(dev, host);
scsi_scan_host(host);
return 0;
@@ -156,7 +157,7 @@ sim710_probe_common(struct device *dev, unsigned long base_addr,
static __devexit int
sim710_device_remove(struct device *dev)
{
struct Scsi_Host *host = dev_to_shost(dev);
struct Scsi_Host *host = dev_get_drvdata(dev);
struct NCR_700_Host_Parameters *hostdata =
(struct NCR_700_Host_Parameters *)host->hostdata[0];