lkml.org 
[lkml]   [2020]   [May]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] xen/pvcalls-back: test for errors when calling backend_connect()
On Mon, 11 May 2020, Juergen Gross wrote:
> backend_connect() can fail, so switch the device to connected only if
> no error occurred.
>
> Fixes: 0a9c75c2c7258f2 ("xen/pvcalls: xenbus state handling")
> Cc: stable@vger.kernel.org
> Signed-off-by: Juergen Gross <jgross@suse.com>

Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>


> ---
> drivers/xen/pvcalls-back.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/xen/pvcalls-back.c b/drivers/xen/pvcalls-back.c
> index cf4ce3e9358d..41a18ece029a 100644
> --- a/drivers/xen/pvcalls-back.c
> +++ b/drivers/xen/pvcalls-back.c
> @@ -1088,7 +1088,8 @@ static void set_backend_state(struct xenbus_device *dev,
> case XenbusStateInitialised:
> switch (state) {
> case XenbusStateConnected:
> - backend_connect(dev);
> + if (backend_connect(dev))
> + return;

Do you think it would make sense to WARN?

> xenbus_switch_state(dev, XenbusStateConnected);
> break;
> case XenbusStateClosing:
> --
> 2.26.1
>

\
 
 \ /
  Last update: 2020-05-11 23:43    [W:0.046 / U:0.836 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site