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SubjectRe: [PATCH 2.6.13] Unhandled error condition in aic7xxx
On Thu, 01 Sep 2005 12:38:24 -0700 Daniel Walker wrote:

>
> This patch should handle the case when scsi_add_host() fails.
>
> Signed-Off-By: Daniel Walker <dwalker@mvista.com>
>
> Index: linux-2.6.13/drivers/scsi/aic7xxx/aic7xxx_osm.c
> ===================================================================
> --- linux-2.6.13.orig/drivers/scsi/aic7xxx/aic7xxx_osm.c 2005-08-28 23:41:01.000000000 +0000
> +++ linux-2.6.13/drivers/scsi/aic7xxx/aic7xxx_osm.c 2005-08-31 18:45:20.000000000 +0000
> @@ -996,6 +996,7 @@ ahc_linux_register_host(struct ahc_softc
> struct Scsi_Host *host;
> char *new_name;
> u_long s;
> + int error = 0;
>
> template->name = ahc->description;
> host = scsi_host_alloc(template, sizeof(struct ahc_softc *));
> @@ -1029,8 +1030,16 @@ ahc_linux_register_host(struct ahc_softc
>
> host->transportt = ahc_linux_transport_template;
>
> - scsi_add_host(host, (ahc->dev_softc ? &ahc->dev_softc->dev : NULL)); /* XXX handle failure */
> - scsi_scan_host(host);
> + error = scsi_add_host(host, (ahc->dev_softc ? &ahc->dev_softc->dev : NULL));
> + if (error) {
> + /*
> + * Discard host variable on error.
> + */
> + scsi_host_put(host);
> + return (error);

no parens on return, just: return error;

> + }
> + scsi_scan_host(host);
> +
> return (0);
> }



---
~Randy
-
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