| Message ID | 20220603123904.30714-1-linmq006@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2] soc: aspeed: Fix IRQ check in aspeed_lpc_snoop_config_irq | expand |
On Fri, 3 Jun 2022, at 22:09, Miaoqian Lin wrote: > 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: 9f4f9ae81d0a ("drivers/misc: add Aspeed LPC snoop driver") > Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
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,
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: 9f4f9ae81d0a ("drivers/misc: add Aspeed LPC snoop driver") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> --- v1 Link: https://lore.kernel.org/r/20220114064357.18562-1-linmq006@gmail.com In previous v1 thread: Reviewed-by: Chia-Wei Wang <chiawei_wang@aspeedtech.com> Signed-off-by: Patrick Venture <venture@google.com> v2 Link: https://lore.kernel.org/r/20220603082336.3867-1-linmq006@gmail.com --- drivers/soc/aspeed/aspeed-lpc-snoop.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)