Revert "tty: serial: bcm63xx: fix missing clk_put() in bcm63xx_uart"

This reverts commit 580d952e44de5509c69c8f9346180ecaa78ebeec ("tty:
serial: bcm63xx: fix missing clk_put() in bcm63xx_uart") because we
should not be doing a clk_put() if we were not successful in getting a
valid clock reference via clk_get() in the first place.

Fixes: 580d952e44de ("tty: serial: bcm63xx: fix missing clk_put() in bcm63xx_uart")
Signed-off-by: Florian Fainelli <[e-mail]>
Cc: stable <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/tty/serial/bcm63xx_uart.c

···
 	if (IS_ERR(clk) && pdev->dev.of_node)
 		clk = of_clk_get(pdev->dev.of_node, 0);
 
-	if (IS_ERR(clk)) {
-		clk_put(clk);
+	if (IS_ERR(clk))
 		return -ENODEV;
-	}
 
 	port->iotype = UPIO_MEM;
 	port->irq = res_irq->start;