In the Linux kernel, the following vulnerability has been resolved:
media: i2c: dw9714: Disable the regulator when the driver fails to probe
When the driver fails to probe, we will get the following splat:
[ 59.305988] ------------[ cut here ]------------ [ 59.306417] WARNING: CPU: 2 PID: 395 at drivers/regulator/core.c:2257 regulatorput+0x3ec/0x4e0 [ 59.310345] RIP: 0010:regulatorput+0x3ec/0x4e0 [ 59.318362] Call Trace: [ 59.318582] <TASK> [ 59.318765] regulatorput+0x1f/0x30 [ 59.319058] devresreleasegroup+0x319/0x3d0 [ 59.319420] i2cdevice_probe+0x766/0x940
Fix this by disabling the regulator in error handling.