From: Jiasheng Jiang jiasheng@iscas.ac.cn
[ Upstream commit db6d6afe382de5a65d6ccf51253ab48b8e8336c3 ]
I find that platform_get_irq() will not always succeed. It will return error irq in case of the failure. Therefore, it might be better to check it if order to avoid the use of error irq.
Fixes: 658d439b2292 ("fjes: Introduce FUJITSU Extended Socket Network Device driver") Signed-off-by: Jiasheng Jiang jiasheng@iscas.ac.cn Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/fjes/fjes_main.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c index 26d3051591dac..9e8add3d93adc 100644 --- a/drivers/net/fjes/fjes_main.c +++ b/drivers/net/fjes/fjes_main.c @@ -1284,6 +1284,11 @@ static int fjes_probe(struct platform_device *plat_dev) hw->hw_res.start = res->start; hw->hw_res.size = resource_size(res); hw->hw_res.irq = platform_get_irq(plat_dev, 0); + if (hw->hw_res.irq < 0) { + err = hw->hw_res.irq; + goto err_free_control_wq; + } + err = fjes_hw_init(&adapter->hw); if (err) goto err_free_control_wq;