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Fix crash when disconnecting output

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We were freeing the sway_output immediately upon disconnect which left
a dangling pointer in the output's container. It then tried to use the
pointer when the container is freed.

We don't need to store the sway_output in an output's container which is
destroying, so the fix is to set the pointer to NULL and remove the use
in container_free.

Also added an arrange when the output is disconnected for good measure.
This commit is contained in:
Ryan Dwyer 2018-06-26 19:40:42 +10:00
parent 0085f64ac0
commit 834805f5e2
2 changed files with 3 additions and 1 deletions
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2
sway/desktop/output.c
View file

@ -1271,6 +1271,8 @@ static void handle_destroy(struct wl_listener *listener, void *data) {
wl_list_remove(&output->destroy.link);
output->wlr_output->data = NULL;
free(output);
arrange_and_commit(&root_container);
}
static void handle_mode(struct wl_listener *listener, void *data) {

2
sway/tree/container.c
View file

@ -171,7 +171,6 @@ void container_free(struct sway_container *cont) {
case C_ROOT:
break;
case C_OUTPUT:
cont->sway_output->swayc = NULL;
break;
case C_WORKSPACE:
container_workspace_free(cont->sway_workspace);
@ -287,6 +286,7 @@ static struct sway_container *container_output_destroy(
wl_list_remove(&output->sway_output->damage_frame.link);
output->sway_output->swayc = NULL;
output->sway_output = NULL;
wlr_log(L_DEBUG, "OUTPUT: Destroying output '%s'", output->name);