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Fixed NULL pointer dereferencing in linked lists

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This commit is contained in:
GoaLitiuM 2014-09-27 01:35:36 +03:00
parent d17565afc8
commit 10f5d7f3aa
4 changed files with 8 additions and 4 deletions
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3
libobs-opengl/gl-shader.c
View File

@ -673,7 +673,8 @@ void gs_program_destroy(struct gs_program *program)
if (program->next)
program->next->prev_next = program->prev_next;
*program->prev_next = program->next;
if (program->prev_next)
*program->prev_next = program->next;
glDeleteProgram(program->obj);
gl_success("glDeleteProgram");

3
libobs/media-io/audio-io.c
View File

@ -99,7 +99,8 @@ static inline void audio_output_removeline(struct audio_output *audio,
struct audio_line *line)
{
pthread_mutex_lock(&audio->line_mutex);
*line->prev_next = line->next;
if (line->prev_next)
*line->prev_next = line->next;
if (line->next)
line->next->prev_next = line->prev_next;
pthread_mutex_unlock(&audio->line_mutex);

3
libobs/obs-display.c
View File

@ -86,7 +86,8 @@ void obs_display_destroy(obs_display_t *display)
{
if (display) {
pthread_mutex_lock(&obs->data.displays_mutex);
*display->prev_next = display->next;
if (display->prev_next)
*display->prev_next = display->next;
if (display->next)
display->next->prev_next = display->prev_next;
pthread_mutex_unlock(&obs->data.displays_mutex);

3
libobs/obs.c
View File

@ -1326,7 +1326,8 @@ void obs_context_data_remove(struct obs_context_data *context)
{
if (context && context->mutex) {
pthread_mutex_lock(context->mutex);
*context->prev_next = context->next;
if (context->prev_next)
*context->prev_next = context->next;
if (context->next)
context->next->prev_next = context->prev_next;
pthread_mutex_unlock(context->mutex);