diff options
| author | Lv Ruyi <lv.ruyi@zte.com.cn> | 2022-04-12 08:53:05 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-09 10:23:07 +0200 |
| commit | c762c4206bb440736def860a994d6e2cb6fa7b15 (patch) | |
| tree | c1d9a7b5a5f9b11088cefe70dff80640d11227a8 /drivers/mfd | |
| parent | 2db3a8f54184228a0d93e8f538aeeb7e6629274c (diff) | |
mfd: ipaq-micro: Fix error check return value of platform_get_irq()
[ Upstream commit 3b49ae380ce1a3054e0c505dd9a356b82a5b48e8 ]
platform_get_irq() return negative value on failure, so null check of
irq is incorrect. Fix it by comparing whether it is less than zero.
Fixes: dcc21cc09e3c ("mfd: Add driver for Atmel Microcontroller on iPaq h3xxx")
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Lv Ruyi <lv.ruyi@zte.com.cn>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220412085305.2533030-1-lv.ruyi@zte.com.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/mfd')
| -rw-r--r-- | drivers/mfd/ipaq-micro.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mfd/ipaq-micro.c b/drivers/mfd/ipaq-micro.c index e92eeeb67a98..4cd5ecc72211 100644 --- a/drivers/mfd/ipaq-micro.c +++ b/drivers/mfd/ipaq-micro.c @@ -403,7 +403,7 @@ static int __init micro_probe(struct platform_device *pdev) micro_reset_comm(micro); irq = platform_get_irq(pdev, 0); - if (!irq) + if (irq < 0) return -EINVAL; ret = devm_request_irq(&pdev->dev, irq, micro_serial_isr, IRQF_SHARED, "ipaq-micro", |