Commit f1c0b7e4 authored by Brendan Higgins's avatar Brendan Higgins Committed by Wolfram Sang

i2c: aspeed: fixed potential null pointer dereference

Before I skipped null checks when the master is in the STOP state; this
fixes that.
Signed-off-by: default avatarBrendan Higgins <brendanhiggins@google.com>
Acked-by: default avatarJoel Stanley <joel@jms.id.au>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
Fixes: f327c686 ("i2c: aspeed: added driver for Aspeed I2C")
parent 42543aeb
......@@ -410,9 +410,10 @@ static bool aspeed_i2c_master_irq(struct aspeed_i2c_bus *bus)
}
/* We are in an invalid state; reset bus to a known state. */
if (!bus->msgs && bus->master_state != ASPEED_I2C_MASTER_STOP) {
if (!bus->msgs) {
dev_err(bus->dev, "bus in unknown state");
bus->cmd_err = -EIO;
if (bus->master_state != ASPEED_I2C_MASTER_STOP)
aspeed_i2c_do_stop(bus);
goto out_no_complete;
}
......
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