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vulkan/wsi/x11: add null pointer check for the has_dri3_v1_2 test

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This fixes a crash (ver_reply is NULL) when DISPLAY points to
a remote display.

Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/6040
Signed-off-by: Brian Paul <brianp@vmware.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15469>
This commit is contained in:
Brian Paul 2022-03-17 22:10:39 -06:00
parent 948ad5ac23
commit 03d342e4b2
1 changed files with 1 additions and 1 deletions
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2
src/vulkan/wsi/wsi_common_x11.c
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@ -246,7 +246,7 @@ wsi_x11_connection_create(struct wsi_device *wsi_dev,
ver_cookie = xcb_dri3_query_version(conn, 1, 2);
ver_reply = xcb_dri3_query_version_reply(conn, ver_cookie, NULL);
has_dri3_v1_2 =
has_dri3_v1_2 = ver_reply != NULL &&
(ver_reply->major_version > 1 || ver_reply->minor_version >= 2);
free(ver_reply);
}