memory: emif: Add check for setup_interrupts

[ Upstream commit fd7bd80b46 ]

As the potential failure of the devm_request_threaded_irq(),
it should be better to check the return value of the
setup_interrupts() and return error if fails.

Fixes: 68b4aee35d ("memory: emif: add interrupt and temperature handling")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220224025444.3256530-1-jiasheng@iscas.ac.cn
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/memory/emif.c

@@ -1117,7 +1117,7 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
 {
 	struct emif_data	*emif;
 	struct resource		*res;
-	int			irq;
+	int			irq, ret;
 
 	if (pdev->dev.of_node)
 		emif = of_get_memory_device_details(pdev->dev.of_node, &pdev->dev);
@@ -1147,7 +1147,9 @@ static int __init_or_module emif_probe(struct platform_device *pdev)
 	emif_onetime_settings(emif);
 	emif_debugfs_init(emif);
 	disable_and_clear_all_interrupts(emif);
-	setup_interrupts(emif, irq);
+	ret = setup_interrupts(emif, irq);
+	if (ret)
+		goto error;
 
 	/* One-time actions taken on probing the first device */
 	if (!emif1) {