[libvirt] [PATCH] mdev: Cleanup code after commits @daf5081b and @2739a983

Laine Stump laine at laine.org
Thu May 4 17:28:27 UTC 2017


On 05/04/2017 11:03 AM, Erik Skultety wrote:
> So, because mingw is somehow OK with dereferencing a pointer within a
> VIR_DEBUG macro, compared to outside of it to which it complained with a
> "potential NULL pointer dereference" error (still a false positive), we
> can make the code a tiny bit cleaner.
> 
> Sighed-by: Erik Skultety <eskultet at redhat.com>
> Signed-off-by: Erik Skultety <eskultet at redhat.com>
> ---
>  src/util/virmdev.c | 9 ++-------
>  1 file changed, 2 insertions(+), 7 deletions(-)
> 
> diff --git a/src/util/virmdev.c b/src/util/virmdev.c
> index 174f48cb3..bd8e3f8de 100644
> --- a/src/util/virmdev.c
> +++ b/src/util/virmdev.c
> @@ -449,13 +449,8 @@ virMediatedDeviceListMarkDevices(virMediatedDeviceListPtr dst,
> 
>      virObjectLock(dst);
>      for (i = 0; i < count; i++) {
> -        const char *mdev_path = NULL;
>          virMediatedDevicePtr mdev = virMediatedDeviceListGet(src, i);
> 
> -        if (!mdev)
> -            goto cleanup;
> -
> -        mdev_path = mdev->path;
>          if (virMediatedDeviceIsUsed(mdev, dst) ||
>              virMediatedDeviceSetUsedBy(mdev, drvname, domname) < 0)
>              goto cleanup;
> @@ -464,11 +459,11 @@ virMediatedDeviceListMarkDevices(virMediatedDeviceListPtr dst,
>           * - caller is responsible for NOT freeing devices in @src on success
>           * - we're responsible for performing a rollback on failure
>           */
> +        VIR_DEBUG("Add '%s' to list of active mediated devices used by '%s'",
> +                  mdev->path, domname);
>          if (virMediatedDeviceListAdd(dst, &mdev) < 0)
>              goto rollback;
> 
> -        VIR_DEBUG("'%s' added to list of active mediated devices used by '%s'",
> -                  mdev_path, domname);
>      }

ACK.




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