1 Aug
2013
1 Aug
'13
7:20 p.m.
On 08/01/2013 10:30 AM, Lars-Peter Clausen wrote:
list_first_entry() will always return a valid pointer, even if the list is empty. So the check whether path is NULL will always be false. So we end up calling dapm_create_or_share_mixmux_kcontrol() with a path struct that points right in the middle of the widget struct and by trying to modify the path the widgets memory will become corrupted. Fix this by using list_emtpy() to check if the widget doesn't have any paths.
Signed-off-by: Lars-Peter Clausen lars@metafoo.de
This is the real fix for the rt5640 crash.
Tested-by: Stephen Warren swarren@nvidia.com