[PATCH v2 2/2] usb: dwc3: exynos: PHY should be deleted later than dwc3 core

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Peter Chen <peter.chen@xxxxxxxxxxxxx>

If the glue layer is removed first (core layer later),
it deletes the phy device first, then the core device.
But at core's removal, it still uses PHY's resources, it may
cause kernel's oops. It is much like the problem
Paul Zimmerman reported at:
http://marc.info/?l=linux-usb&m=136547502011472&w=2.

Besides, it is reasonable the PHY is deleted at last as
the controller is the PHY's user.

Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---

fixed stable address

 drivers/usb/dwc3/dwc3-exynos.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 929e7dd..8ce9d7f 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -164,9 +164,9 @@ static int dwc3_exynos_remove(struct platform_device *pdev)
 {
 	struct dwc3_exynos	*exynos = platform_get_drvdata(pdev);
 
+	device_for_each_child(&pdev->dev, NULL, dwc3_exynos_remove_child);
 	platform_device_unregister(exynos->usb2_phy);
 	platform_device_unregister(exynos->usb3_phy);
-	device_for_each_child(&pdev->dev, NULL, dwc3_exynos_remove_child);
 
 	clk_disable_unprepare(exynos->clk);
 
-- 
1.8.2.1

--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux Kernel]     [Kernel Development Newbies]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Hiking]     [Linux Kernel]     [Linux SCSI]