spi: tegra: Fix a memory leak in tegra_slink_probe()

[ Upstream commit 41d9a67 ]

In tegra_slink_probe(), when platform_get_irq() fails, it directly
returns from the function with an error code, which causes a memory leak.

Replace it with a goto label to ensure proper cleanup.

Fixes: eb9913b ("spi: tegra: Fix missing IRQ check in tegra_slink_probe()")
Signed-off-by: Felix Gu <[email protected]>
Reviewed-by: Jon Hunter <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>

Author: outman119

drivers/spi/spi-tegra20-slink.c

@@ -1086,8 +1086,10 @@ static int tegra_slink_probe(struct platform_device *pdev)
 	reset_control_deassert(tspi->rst);
 
 	spi_irq = platform_get_irq(pdev, 0);
-	if (spi_irq < 0)
-		return spi_irq;
+	if (spi_irq < 0) {
+		ret = spi_irq;
+		goto exit_pm_put;
+	}
 	tspi->irq = spi_irq;
 	ret = request_threaded_irq(tspi->irq, tegra_slink_isr,
 				   tegra_slink_isr_thread, IRQF_ONESHOT,