[Buildroot] [PATCH 1/1] package/cog: add patch fixing cog segfault

[Adrian Perez de Castro <aperez@igalia.com>]

On Tue, 18 Feb 2020 01:43:39 -0700, James Hilliard <james.hilliard1@gmail.com> wrote:
> Fixes:
> Thread 1 "cog" received signal SIGSEGV, Segmentation fault.
> xkb_state_update_mask (state=0x0, base_mods=0, latched_mods=0, locked_mods=0, base_group=base_group at entry=0, latched_group=latched_group at entry=0, locked_group=0) at ../src/state.c:814
> 814	    prev_components = state->components;
> 
> Signed-off-by: James Hilliard <james.hilliard1@gmail.com>

Acked-by: Adrian Perez de Castro <aperez@igalia.com>

> ---
>  ...ata.state-is-not-null-before-calling.patch | 30 +++++++++++++++++++
>  1 file changed, 30 insertions(+)
>  create mode 100644 package/cog/0001-fdo-ensure-xkb_data.state-is-not-null-before-calling.patch
> 
> diff --git a/package/cog/0001-fdo-ensure-xkb_data.state-is-not-null-before-calling.patch b/package/cog/0001-fdo-ensure-xkb_data.state-is-not-null-before-calling.patch
> new file mode 100644
> index 0000000000..4e8d4ad121
> --- /dev/null
> +++ b/package/cog/0001-fdo-ensure-xkb_data.state-is-not-null-before-calling.patch
> @@ -0,0 +1,30 @@
> +From 9f1f1e64b65e6680d5cdedf5a3b753ef85fc01f4 Mon Sep 17 00:00:00 2001
> +From: James Hilliard <james.hilliard1@gmail.com>
> +Date: Tue, 18 Feb 2020 01:20:50 -0700
> +Subject: [PATCH] fdo: ensure xkb_data.state is not null before calling
> + xkb_state_update_mask (#180)
> +
> +[james.hilliard1 at gmail.com: backport from upstream commit
> +9f1f1e64b65e6680d5cdedf5a3b753ef85fc01f4]
> +Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
> +---
> + platform/cog-platform-fdo.c | 3 +++
> + 1 file changed, 3 insertions(+)
> +
> +diff --git a/platform/cog-platform-fdo.c b/platform/cog-platform-fdo.c
> +index 36177fc..e6f1cb5 100644
> +--- a/platform/cog-platform-fdo.c
> ++++ b/platform/cog-platform-fdo.c
> +@@ -894,6 +894,9 @@ keyboard_on_modifiers (void *data,
> +                        uint32_t mods_locked,
> +                        uint32_t group)
> + {
> ++    if (xkb_data.state == NULL)
> ++        return;
> ++
> +     xkb_state_update_mask (xkb_data.state,
> +                            mods_depressed,
> +                            mods_latched,
> +-- 
> +2.20.1
> +
> -- 
> 2.20.1
> 
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