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authorIlia Sergachev <silia@ethz.ch>2021-11-15 22:49:44 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-11-25 18:25:24 +0100
commit0f55f89d98c8b3e12b4f55f71c127a173e29557c (patch)
tree5760212d8a5eef5634ad46964936da56f8fece77
parentvgacon: Propagate console boot parameters before calling `vc_resize' (diff)
downloadlinux-0f55f89d98c8b3e12b4f55f71c127a173e29557c.tar.xz
linux-0f55f89d98c8b3e12b4f55f71c127a173e29557c.zip
serial: liteuart: Fix NULL pointer dereference in ->remove()
drvdata has to be set in _probe() - otherwise platform_get_drvdata() causes null pointer dereference BUG in _remove(). Fixes: 1da81e5562fa ("drivers/tty/serial: add LiteUART driver") Cc: stable <stable@vger.kernel.org> Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Ilia Sergachev <silia@ethz.ch> Link: https://lore.kernel.org/r/20211115224944.23f8c12b@dtkw Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/tty/serial/liteuart.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/tty/serial/liteuart.c b/drivers/tty/serial/liteuart.c
index dbc0559a9157..f075f4ff5fcf 100644
--- a/drivers/tty/serial/liteuart.c
+++ b/drivers/tty/serial/liteuart.c
@@ -285,6 +285,8 @@ static int liteuart_probe(struct platform_device *pdev)
port->line = dev_id;
spin_lock_init(&port->lock);
+ platform_set_drvdata(pdev, port);
+
return uart_add_one_port(&liteuart_driver, &uart->port);
}