From: Kyle Tso kyletso@google.com
commit 609fded3f91972ada551c141c5d04a71704f8967 upstream.
The buffer address used in sysfs_emit should be aligned to PAGE_SIZE. Use sysfs_emit_at instead to offset the buffer.
Fixes: a7cff92f0635 ("usb: typec: USB Power Delivery helpers for ports and partners") Cc: stable@vger.kernel.org Signed-off-by: Kyle Tso kyletso@google.com Acked-by: Heikki Krogerus heikki.krogerus@linux.intel.com Link: https://lore.kernel.org/r/20230623151036.3955013-4-kyletso@google.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/typec/class.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/usb/typec/class.c +++ b/drivers/usb/typec/class.c @@ -1269,9 +1269,9 @@ static ssize_t select_usb_power_delivery
for (i = 0; pds[i]; i++) { if (pds[i] == port->pd) - ret += sysfs_emit(buf + ret, "[%s] ", dev_name(&pds[i]->dev)); + ret += sysfs_emit_at(buf, ret, "[%s] ", dev_name(&pds[i]->dev)); else - ret += sysfs_emit(buf + ret, "%s ", dev_name(&pds[i]->dev)); + ret += sysfs_emit_at(buf, ret, "%s ", dev_name(&pds[i]->dev)); }
buf[ret - 1] = '\n';