[PATCH] soc: aspeed: Fix IRQ check in aspeed_lpc_snoop_config_irq

From: Miaoqian Lin
Date: Fri Jan 14 2022 - 01:44:08 EST


platform_get_irq() returns negative error number instead 0 on failure.
And the doc of platform_get_irq() provides a usage example:

int irq = platform_get_irq(pdev, 0);
if (irq < 0)
return irq;

Fix the check of return value to catch errors correctly.

Fixes: 524feb799408 ("soc: add aspeed folder and misc drivers")
Signed-off-by: Miaoqian Lin <linmq006@xxxxxxxxx>
---
drivers/soc/aspeed/aspeed-lpc-snoop.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/aspeed/aspeed-lpc-snoop.c b/drivers/soc/aspeed/aspeed-lpc-snoop.c
index eceeaf8dfbeb..c4a03b3a5cf8 100644
--- a/drivers/soc/aspeed/aspeed-lpc-snoop.c
+++ b/drivers/soc/aspeed/aspeed-lpc-snoop.c
@@ -167,8 +167,8 @@ static int aspeed_lpc_snoop_config_irq(struct aspeed_lpc_snoop *lpc_snoop,
int rc;

lpc_snoop->irq = platform_get_irq(pdev, 0);
- if (!lpc_snoop->irq)
- return -ENODEV;
+ if (lpc_snoop->irq < 0)
+ return lpc_snoop->irq;

rc = devm_request_irq(dev, lpc_snoop->irq,
aspeed_lpc_snoop_irq, IRQF_SHARED,
--
2.17.1