Commit 1e1be6d4 authored by Marek Vasut's avatar Marek Vasut
Browse files

usb: ehci: Do not de-init uninited controllers



In case the controller is not initialized, we shall not de-initialize it.
As the control structure will not be filled, we will produce a null ptr
dereference if the controller is not inited.
Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
parent 8fb83547
......@@ -201,6 +201,9 @@ static int ehci_shutdown(struct ehci_ctrl *ctrl)
int i, ret = 0;
uint32_t cmd, reg;
if (!ctrl || !ctrl->hcor)
return -EINVAL;
cmd = ehci_readl(&ctrl->hcor->or_usbcmd);
cmd &= ~(CMD_PSE | CMD_ASE);
ehci_writel(&ctrl->hcor->or_usbcmd, cmd);
......
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