Loading/unloading modules exposes issues with memory allocation, which is a mix of devm_kzalloc and manual kzalloc. Move to devm_k routines everywhere to simplify all this.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/codecs/hdac_hdmi.c | 87 ++++++++---------------------------- 1 file changed, 18 insertions(+), 69 deletions(-)
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index b19d7a3e7a2c..5eeb0fe836a9 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -1176,13 +1176,15 @@ static int hdac_hdmi_add_cvt(struct hdac_device *hdev, hda_nid_t nid) struct hdac_hdmi_cvt *cvt; char name[NAME_SIZE];
- cvt = kzalloc(sizeof(*cvt), GFP_KERNEL); + cvt = devm_kzalloc(&hdev->dev, sizeof(*cvt), GFP_KERNEL); if (!cvt) return -ENOMEM;
cvt->nid = nid; sprintf(name, "cvt %d", cvt->nid); - cvt->name = kstrdup(name, GFP_KERNEL); + cvt->name = devm_kstrdup(&hdev->dev, name, GFP_KERNEL); + if (!cvt->name) + return -ENOMEM;
list_add_tail(&cvt->head, &hdmi->cvt_list); hdmi->num_cvt++; @@ -1287,8 +1289,8 @@ static void hdac_hdmi_present_sense(struct hdac_hdmi_pin *pin, mutex_unlock(&hdmi->pin_mutex); }
-static int hdac_hdmi_add_ports(struct hdac_hdmi_priv *hdmi, - struct hdac_hdmi_pin *pin) +static int hdac_hdmi_add_ports(struct hdac_device *hdev, + struct hdac_hdmi_pin *pin) { struct hdac_hdmi_port *ports; int max_ports = HDA_MAX_PORTS; @@ -1300,7 +1302,7 @@ static int hdac_hdmi_add_ports(struct hdac_hdmi_priv *hdmi, * implemented. */
- ports = kcalloc(max_ports, sizeof(*ports), GFP_KERNEL); + ports = devm_kcalloc(&hdev->dev, max_ports, sizeof(*ports), GFP_KERNEL); if (!ports) return -ENOMEM;
@@ -1319,14 +1321,14 @@ static int hdac_hdmi_add_pin(struct hdac_device *hdev, hda_nid_t nid) struct hdac_hdmi_pin *pin; int ret;
- pin = kzalloc(sizeof(*pin), GFP_KERNEL); + pin = devm_kzalloc(&hdev->dev, sizeof(*pin), GFP_KERNEL); if (!pin) return -ENOMEM;
pin->nid = nid; pin->mst_capable = false; pin->hdev = hdev; - ret = hdac_hdmi_add_ports(hdmi, pin); + ret = hdac_hdmi_add_ports(hdev, pin); if (ret < 0) return ret;
@@ -1468,8 +1470,6 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev, { hda_nid_t nid; int i, num_nodes; - struct hdac_hdmi_cvt *temp_cvt, *cvt_next; - struct hdac_hdmi_pin *temp_pin, *pin_next; struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); int ret;
@@ -1497,51 +1497,35 @@ static int hdac_hdmi_parse_and_map_nid(struct hdac_device *hdev, case AC_WID_AUD_OUT: ret = hdac_hdmi_add_cvt(hdev, nid); if (ret < 0) - goto free_widgets; + return ret; break;
case AC_WID_PIN: ret = hdac_hdmi_add_pin(hdev, nid); if (ret < 0) - goto free_widgets; + return ret; break; } }
if (!hdmi->num_pin || !hdmi->num_cvt) { ret = -EIO; - goto free_widgets; + dev_err(&hdev->dev, "Bad pin/cvt setup in %s\n", __func__); + return ret; }
ret = hdac_hdmi_create_dais(hdev, dais, hdmi, hdmi->num_cvt); if (ret) { dev_err(&hdev->dev, "Failed to create dais with err: %d\n", - ret); - goto free_widgets; + ret); + return ret; }
*num_dais = hdmi->num_cvt; ret = hdac_hdmi_init_dai_map(hdev); if (ret < 0) - goto free_widgets; - - return ret; - -free_widgets: - list_for_each_entry_safe(temp_cvt, cvt_next, &hdmi->cvt_list, head) { - list_del(&temp_cvt->head); - kfree(temp_cvt->name); - kfree(temp_cvt); - } - - list_for_each_entry_safe(temp_pin, pin_next, &hdmi->pin_list, head) { - for (i = 0; i < temp_pin->num_ports; i++) - temp_pin->ports[i].pin = NULL; - kfree(temp_pin->ports); - list_del(&temp_pin->head); - kfree(temp_pin); - } - + dev_err(&hdev->dev, "Failed to init DAI map with err: %d\n", + ret); return ret; }
@@ -1782,7 +1766,7 @@ int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device, * this is a new PCM device, create new pcm and * add to the pcm list */ - pcm = kzalloc(sizeof(*pcm), GFP_KERNEL); + pcm = devm_kzalloc(&hdev->dev, sizeof(*pcm), GFP_KERNEL); if (!pcm) return -ENOMEM; pcm->pcm_id = device; @@ -1798,7 +1782,6 @@ int hdac_hdmi_jack_init(struct snd_soc_dai *dai, int device, dev_err(&hdev->dev, "chmap control add failed with err: %d for pcm: %d\n", err, device); - kfree(pcm); return err; } } @@ -2075,42 +2058,8 @@ static int hdac_hdmi_dev_probe(struct hdac_device *hdev)
static int hdac_hdmi_dev_remove(struct hdac_device *hdev) { - struct hdac_hdmi_priv *hdmi = hdev_to_hdmi_priv(hdev); - struct hdac_hdmi_pin *pin, *pin_next; - struct hdac_hdmi_cvt *cvt, *cvt_next; - struct hdac_hdmi_pcm *pcm, *pcm_next; - struct hdac_hdmi_port *port, *port_next; - int i; - snd_hdac_display_power(hdev->bus, hdev->addr, false);
- list_for_each_entry_safe(pcm, pcm_next, &hdmi->pcm_list, head) { - pcm->cvt = NULL; - if (list_empty(&pcm->port_list)) - continue; - - list_for_each_entry_safe(port, port_next, - &pcm->port_list, head) - list_del(&port->head); - - list_del(&pcm->head); - kfree(pcm); - } - - list_for_each_entry_safe(cvt, cvt_next, &hdmi->cvt_list, head) { - list_del(&cvt->head); - kfree(cvt->name); - kfree(cvt); - } - - list_for_each_entry_safe(pin, pin_next, &hdmi->pin_list, head) { - for (i = 0; i < pin->num_ports; i++) - pin->ports[i].pin = NULL; - kfree(pin->ports); - list_del(&pin->head); - kfree(pin); - } - return 0; }