lkml.org 
[lkml]   [2020]   [Jun]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH 4.19 091/267] xen/pvcalls-back: test for errors when calling backend_connect()
    Date
    From: Juergen Gross <jgross@suse.com>

    commit c8d70a29d6bbc956013f3401f92a4431a9385a3c upstream.

    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>
    Link: https://lore.kernel.org/r/20200511074231.19794-1-jgross@suse.com
    Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
    Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/xen/pvcalls-back.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    --- a/drivers/xen/pvcalls-back.c
    +++ b/drivers/xen/pvcalls-back.c
    @@ -1096,7 +1096,8 @@ static void set_backend_state(struct xen
    case XenbusStateInitialised:
    switch (state) {
    case XenbusStateConnected:
    - backend_connect(dev);
    + if (backend_connect(dev))
    + return;
    xenbus_switch_state(dev, XenbusStateConnected);
    break;
    case XenbusStateClosing:

    \
     
     \ /
      Last update: 2020-06-19 17:25    [W:3.749 / U:0.296 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site