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Commit 18f91196 authored by Ajay Kumar Gupta's avatar Ajay Kumar Gupta Committed by Greg Kroah-Hartman
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USB: ehci: omap: fix kernel panic with rmmod 



Sets the regulator values to NULL if they are not defined. This
is required to fix the kernel panic in exit path when EHCI module
is removed on the platforms where EHCI regulator are not set.

Signed-off-by: default avatarAjay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 4c1f5c88

drivers/usb/host/ehci-omap.c

+4 −2
Original line number Diff line number Diff line
@@ -629,12 +629,14 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) 
		}

		snprintf(supply, sizeof(supply), "hsusb%d", i);

		omap->regulator[i] = regulator_get(omap->dev, supply);

		if (IS_ERR(omap->regulator[i]))

		if (IS_ERR(omap->regulator[i])) {

			omap->regulator[i] = NULL;

			dev_dbg(&pdev->dev,

			"failed to get ehci port%d regulator\n", i);

		else

		} else {

			regulator_enable(omap->regulator[i]);

		}

	}



	ret = omap_start_ehc(omap, hcd);

	if (ret) {