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| author | Heikki Krogerus | 2019-02-01 11:47:55 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-02-08 10:25:12 +0100 |
| commit | b0fcdffdd6262d49d509a2945b2c2375a84f28af (patch) | |
| tree | 3d304e6effdc004331db9e4838aaadf2ad716ebf /drivers/usb/core/message.c | |
| parent | usb: typec: displayport: Move the Configuration VDO helpers to the header (diff) | |
| download | kernel-qcow2-linux-b0fcdffdd6262d49d509a2945b2c2375a84f28af.tar.gz kernel-qcow2-linux-b0fcdffdd6262d49d509a2945b2c2375a84f28af.tar.xz kernel-qcow2-linux-b0fcdffdd6262d49d509a2945b2c2375a84f28af.zip | |
usb: typec: Prepare alt mode enter/exit reporting for UCSI alt mode support
Because of UCSI, we have to support alt mode enter/exit
reporting even when there is no alt mode driver bind to the
alt mode device. With UCSI a firmware handles the alternate
modes, and the modes are entered automatically from OS PoW.
Changing typec_altmode_update_active() so that the driver
module ref count is incremented/decremented only if there
really is a driver for the alt mode. That avoids a NULL
pointer dereference from happening when the driver is
missing.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/message.c')
0 files changed, 0 insertions, 0 deletions