On Wed, Feb 3, 2010 at 10:49 AM, Roel Kluin <roel.kluin@xxxxxxxxx> wrote:
> The initial -EINVAL value is overwritten by `retval = PTR_ERR(name)'.
> If this isn't an error pointer and typenr is not 1, 6 or 9, then
> this retval, a pointer cast to a long, is returned.
>
> Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
> ---
> Was this intended? Not sure whether this can occur, found by code
> analysis.
>
> diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
> index 62619f2..53c213f 100644
> --- a/arch/alpha/kernel/osf_sys.c
> +++ b/arch/alpha/kernel/osf_sys.c
> @@ -361,7 +361,7 @@ osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags)
> SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, char __user *, path,
> int, flag, void __user *, data)
> {
> - int retval = -EINVAL;
> + int retval;
> char *name;
>
> name = getname(path);
> @@ -379,6 +379,7 @@ SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, char __user *, path,
> retval = osf_procfs_mount(name, data, flag);
> break;
> default:
> + retval = -EINVAL;
> printk("osf_mount(%ld, %x)\n", typenr, flag);
> }
> putname(name);
>
Looks like a bug to me as well. Can anyone else confirm?
Matt Turner
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