Commit 3bec2f77 authored by Yuan Can's avatar Yuan Can Committed by Greg Kroah-Hartman
Browse files

serial: pic32: Add checks for devm_clk_get() in pic32_uart_probe() 



As the devm_clk_get() may return ERR_PTR, its return value needs to be
checked to avoid invalid poineter dereference.

Signed-off-by: default avatarYuan Can <yuancan@huawei.com>
Link: https://lore.kernel.org/r/20221125093832.33386-1-yuancan@huawei.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c54d4854

drivers/tty/serial/pic32_uart.c

+2 −0
Original line number Diff line number Diff line
@@ -889,6 +889,8 @@ static int pic32_uart_probe(struct platform_device *pdev) 
	sport->irq_rx		= irq_of_parse_and_map(np, 1);

	sport->irq_tx		= irq_of_parse_and_map(np, 2);

	sport->clk		= devm_clk_get(&pdev->dev, NULL);

	if (IS_ERR(sport->clk))

		return PTR_ERR(sport->clk);

	sport->dev		= &pdev->dev;



	/* Hardware flow control: gpios