openharmony/third_party_alsa-lib
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alsa-lib: fixed coverity reported issues under "FORWARD_NULL" checker.

Browse Source 
Coverity Static Analysis helps developers find hard-to-spot,
yet potentially crash-causing defects early in the development phase,
reducing the cost,time, and risk of software errors.

This patch has fix for situations where variable can be NULL
but not been checked beforehand

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Sudarshan Bisht 2011-04-12 13:09:45 +03:00 committed by Takashi Iwai
parent 6bb36928b1
commit 808ce5deb3
7 changed files with 11 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
modules/mixer/simple/sbasedl.c
View File

@ -99,7 +99,7 @@ int mixer_simple_basic_dlopen(snd_mixer_class_t *class,
__error:
if (initflag)
free(priv);
if (h == NULL)
if (h)
snd_dlclose(h);
free(xlib);
return -ENXIO;

1
src/conf.c
View File

@ -3268,6 +3268,7 @@ static int snd_config_hooks_call(snd_config_t *root, snd_config_t *config, snd_c
snd_config_iterator_t i, next;
if (snd_config_get_type(func_conf) != SND_CONFIG_TYPE_COMPOUND) {
SNDERR("Invalid type for func %s definition", str);
err = -EINVAL;
goto _err;
}
snd_config_for_each(i, next, func_conf) {

1
src/hwdep/hwdep.c
View File

@ -78,6 +78,7 @@ static int snd_hwdep_open_conf(snd_hwdep_t **hwdep,
if (err >= 0) {
if (snd_config_get_type(type_conf) != SND_CONFIG_TYPE_COMPOUND) {
SNDERR("Invalid type for HWDEP type %s definition", str);
err = -EINVAL;
goto _err;
}
snd_config_for_each(i, next, type_conf) {

1
src/pcm/pcm_hooks.c
View File

@ -385,6 +385,7 @@ static int snd_pcm_hook_add_conf(snd_pcm_t *pcm, snd_config_t *root, snd_config_
if (err >= 0) {
if (snd_config_get_type(type) != SND_CONFIG_TYPE_COMPOUND) {
SNDERR("Invalid type for PCM type %s definition", str);
err = -EINVAL;
goto _err;
}
snd_config_for_each(i, next, type) {

2
src/pcm/pcm_simple.c
View File

@ -89,7 +89,7 @@ static int set_hw_params(snd_pcm_t *pcm,
return err;
if (periods == 1)
return -EINVAL;
if (*period_time == 0) {
if (period_time) {
err = INTERNAL(snd_pcm_hw_params_get_period_time)(hw_params, period_time, NULL);
if (err < 0)
return err;

1
src/rawmidi/rawmidi.c
View File

@ -201,6 +201,7 @@ static int snd_rawmidi_open_conf(snd_rawmidi_t **inputp, snd_rawmidi_t **outputp
if (err >= 0) {
if (snd_config_get_type(type_conf) != SND_CONFIG_TYPE_COMPOUND) {
SNDERR("Invalid type for RAWMIDI type %s definition", str);
err = -EINVAL;
goto _err;
}
snd_config_for_each(i, next, type_conf) {

8
src/rawmidi/rawmidi_virt.c
View File

@ -383,9 +383,11 @@ int snd_rawmidi_virtual_open(snd_rawmidi_t **inputp, snd_rawmidi_t **outputp,
_err:
if (seq_handle)
snd_seq_close(seq_handle);
if (virt->midi_event)
snd_midi_event_free(virt->midi_event);
free(virt);
if (virt) {
if (virt->midi_event)
snd_midi_event_free(virt->midi_event);
free(virt);
}
if (inputp)
free(*inputp);
if (outputp)