On Tue, Feb 23, 2016 at 09:49:09AM +0100, Michal Privoznik wrote:
> There's this check when building command line that whenever
> domain has no graphics card configured we put -nographics onto
> qemu command line. The check is 'if (!def->graphics)'. This
> makes coverity think that def->graphics can be NULL, which is
> true. But later in the code every access to def->graphics is
> guarded by check for def->ngraphics, so no crash occurs. But this
> is something that coverity fails to deduct.
> In order to shut coverity up lets change the condition to
> 'if (!def->ngraphics)'.
>
> Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx>
> ---
> src/qemu/qemu_command.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
ACK
> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
> index 78423e7..854e51c 100644
> --- a/src/qemu/qemu_command.c
> +++ b/src/qemu/qemu_command.c
> @@ -7130,7 +7130,7 @@ qemuBuildCommandLine(virConnectPtr conn,
> * if you ask for nographic. So we have to make sure we override
> * these defaults ourselves...
> */
> - if (!def->graphics) {
> + if (!def->ngraphics) {
For integers, I have a slight preference for == 0, but this seems to be
the prevailing style in qemuBuildCommandLine.
Jan
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