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authorZhu Wang <wangzhu9@huawei.com>2023-08-04 13:54:30 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2023-08-04 15:45:58 +0300
commitadbe9720e573d0466b506df3b848bcf4c4dd63c9 (patch)
treee5728067402484671fde5d681959d447453ee230 /drivers/usb/musb
parent98a9e32bdf2525073fdfbdcc520d5c798a7375e5 (diff)
downloadlinux-adbe9720e573d0466b506df3b848bcf4c4dd63c9.tar.xz
usb: musb: Fix deferred probing
When platform_get_irq_byname() fails, it may return -EPROBE_DEFER, which suggested deferred probing, it is very important to propagate it upstream. We cannot override it with other error code. Commit ce753ad1549c ("platform: finally disallow IRQ0 in platform_get_irq() and its ilk") makes sure IRQ0 is not returned. Signed-off-by: Zhu Wang <wangzhu9@huawei.com> Link: https://lore.kernel.org/r/20230804105430.95773-1-wangzhu9@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/musb')
-rw-r--r--drivers/usb/musb/musb_core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index ecbd3784bec3..b24adb5b399f 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2610,8 +2610,8 @@ static int musb_probe(struct platform_device *pdev)
int irq = platform_get_irq_byname(pdev, "mc");
void __iomem *base;
- if (irq <= 0)
- return -ENODEV;
+ if (irq < 0)
+ return irq;
base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base))