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[SCSI] aic7xxx/aic79xx: fix module removal path not to panic

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In these drivers, scsi_remove_host() is called too late, at the point
it is called, the driver has already shut down too far to accept any
I/O that the shutdown might generate.  Any generated I/O actually
triggers a panic.

Fix this by calling scsi_remove_host() as early as possible and not
calling scsi_host_put() until just before we kfree the ahc_softc.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Bottomley
2005-10-02 15:22:35 -05:00
committed by James Bottomley
parent 9e70592fcd
commit 97af50f60f
5 changed files with 15 additions and 10 deletions
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3
drivers/scsi/aic7xxx/aic79xx_osm_pci.c
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@@ -95,6 +95,9 @@ ahd_linux_pci_dev_remove(struct pci_dev *pdev)
struct ahd_softc *ahd = pci_get_drvdata(pdev);
u_long s;
if (ahd->platform_data && ahd->platform_data->host)
scsi_remove_host(ahd->platform_data->host);
ahd_lock(ahd, &s);
ahd_intr_enable(ahd, FALSE);
ahd_unlock(ahd, &s);