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properly free and unmap memory in closeFrameBuffer

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Qingping Hou
2012-06-14 21:03:31 +08:00
parent 271701edfe
commit 81a846f32f
1 changed files with 6 additions and 4 deletions
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10
einkfb.c
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@@ -140,13 +140,15 @@ static int closeFrameBuffer(lua_State *L) {
// should be save if called twice
if(fb->buf != NULL && fb->buf->data != NULL) {
#ifndef EMULATE_READER
munmap(fb->buf->data, fb->finfo.smem_len);
if (fb->vinfo.bits_per_pixel != 4) {
munmap(fb->read_buf->data, fb->finfo.smem_len);
free(fb->buf->data);
} else {
munmap(fb->buf->data, fb->finfo.smem_len);
}
close(fb->fd);
#else
free(fb->buf->data);
if (fb->vinfo.bits_per_pixel != 4) {
free(fb->real_buf->data);
}
#endif
fb->buf->data = NULL;
// the blitbuffer in fb->buf should be freed