A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-11 15:11:48 -04:00
Code Issues Projects Releases Packages Wiki Activity

ASoC: wsa883x: Check for dereference before access

Browse source 
Check for valid pointer before access in wsa883x driver
to avoid dereference.

Change-Id: I1c7c158063d178b489ea1e71be745ed3ca32fb16
Signed-off-by: Sudheer Papothi <spapothi@codeaurora.org>
This commit is contained in:
Sudheer Papothi 2020-04-21 04:32:59 +05:30
commit 8e815fed8b
1 changed files with 20 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

27
asoc/codecs/wsa883x/wsa883x.c
View file

@ -1587,6 +1587,11 @@ static int wsa883x_swr_probe(struct swr_device *pdev)
wsa883x->wsa883x_name_prefix = kstrndup(wsa883x_name_prefix_of,
strlen(wsa883x_name_prefix_of), GFP_KERNEL);
component = snd_soc_lookup_component(&pdev->dev, wsa883x->driver->name);
if (!component) {
dev_err(&pdev->dev, "%s: component is NULL \n", __func__);
ret = -EINVAL;
goto err_mem;
}
component->name_prefix = wsa883x->wsa883x_name_prefix;
wsa883x->parent_np = of_parse_phandle(pdev->dev.of_node,
@ -1654,10 +1659,16 @@ static int wsa883x_swr_probe(struct swr_device *pdev)
return 0;
err_mem:
if (wsa883x->dai_driver)
kfree(wsa883x->wsa883x_name_prefix);
if (wsa883x->dai_driver) {
kfree(wsa883x->dai_driver->name);
kfree(wsa883x->dai_driver->playback.stream_name);
kfree(wsa883x->dai_driver);
if (wsa883x->driver)
}
if (wsa883x->driver) {
kfree(wsa883x->driver->name);
kfree(wsa883x->driver);
}
err_irq:
wcd_free_irq(&wsa883x->irq_info, WSA883X_IRQ_INT_SAF2WAR, NULL);
wcd_free_irq(&wsa883x->irq_info, WSA883X_IRQ_INT_WAR2SAF, NULL);
@ -1709,13 +1720,15 @@ static int wsa883x_swr_remove(struct swr_device *pdev)
mutex_destroy(&wsa883x->res_lock);
snd_soc_unregister_component(&pdev->dev);
kfree(wsa883x->wsa883x_name_prefix);
kfree(wsa883x->driver->name);
kfree(wsa883x->dai_driver->name);
kfree(wsa883x->dai_driver->playback.stream_name);
if (wsa883x->dai_driver)
if (wsa883x->dai_driver) {
kfree(wsa883x->dai_driver->name);
kfree(wsa883x->dai_driver->playback.stream_name);
kfree(wsa883x->dai_driver);
if (wsa883x->driver)
}
if (wsa883x->driver) {
kfree(wsa883x->driver->name);
kfree(wsa883x->driver);
}
swr_set_dev_data(pdev, NULL);
return 0;
}