On Tue, May 17, 2022 at 05:55:21PM +0800, Yuanjun Gong wrote:

From: Gong Yuanjun ruc_gongyuanjun@163.com

In regulator/cros-ec-regulator.c, cros_ec_cmd is sometimes called with *indata set to NULL.

static int cros_ec_regulator_enable(struct regulator_dev *dev){ ... cros_ec_cmd(data->ec_dev, 0, EC_CMD_REGULATOR_ENABLE, &cmd, sizeof(cmd), NULL, 0) ...}

Don't do memcpy if indata is NULL.

Signed-off-by: Gong Yuanjun ruc_gongyuanjun@163.com

drivers/platform/chrome/cros_ec_proto.c | 2 +- drivers/regulator/cros-ec-regulator.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c index c4caf2e2de82..da175c57cff7 100644 --- a/drivers/platform/chrome/cros_ec_proto.c +++ b/drivers/platform/chrome/cros_ec_proto.c @@ -938,7 +938,7 @@ int cros_ec_command(struct cros_ec_device *ec_dev, if (ret < 0) goto error;

• if (insize)

• if (indata && insize) memcpy(indata, msg->data, insize);

error: kfree(msg); diff --git a/drivers/regulator/cros-ec-regulator.c b/drivers/regulator/cros-ec-regulator.c index c4754f3cf233..1c7ff085e492 100644 --- a/drivers/regulator/cros-ec-regulator.c +++ b/drivers/regulator/cros-ec-regulator.c @@ -44,7 +44,7 @@ static int cros_ec_cmd(struct cros_ec_device *ec, u32 version, u32 command, if (ret < 0) goto cleanup;

• if (insize)

• if (indata && insize) memcpy(indata, msg->data, insize);

cleanup: -- 2.17.1

<formletter>

This is not the correct way to submit patches for inclusion in the stable kernel tree. Please read: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html for how to do this properly.

</formletter>