On 9 February 2015 at 14:45, Jon TURNEY <[email protected]> wrote:
> ephyr_glamor_connect() returns NULL if we failed, but applying
> xcb_connection_has_error() to NULL is not permitted.
>
> Signed-off-by: Jon TURNEY <[email protected]>
> ---
> hw/kdrive/ephyr/hostx.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/kdrive/ephyr/hostx.c b/hw/kdrive/ephyr/hostx.c
> index f64861b..15edce8 100644
> --- a/hw/kdrive/ephyr/hostx.c
> +++ b/hw/kdrive/ephyr/hostx.c
> @@ -443,7 +443,7 @@ hostx_init(void)
> else
> #endif
> HostX.conn = xcb_connect(NULL, &HostX.screen);
> - if (xcb_connection_has_error(HostX.conn)) {
> + if (!HostX.conn || xcb_connection_has_error(HostX.conn)) {
No need to change the check, as xcb_connect() ...
"Always returns a non-NULL pointer to a xcb_connection_t, even on failure."
http://cgit.freedesktop.org/xcb/libxcb/tree/src/xcb.h#n549
> fprintf(stderr, "\nXephyr cannot open host display. Is DISPLAY
> set?\n");
> exit(1);
> }
> --
> 2.1.4
>
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