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usb: dwc3: Fix an IS_ERR() vs NULL check in dwc3_power_off_all_roothub_ports()

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The ioremap() function doesn't return error pointers, it returns NULL on
error.  Update the check.

Fixes: 2d2a334952 ("usb: dwc3: Add workaround for host mode VBUS glitch when boot")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/71499112-4ed3-489a-9a56-b4a8ab89cd05@moroto.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dan Carpenter 2024-01-31 10:10:27 +03:00 committed by Greg Kroah-Hartman
parent 50c72a46eb
commit b65bdf7fd6
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/dwc3/host.c
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@ -35,7 +35,7 @@ static void dwc3_power_off_all_roothub_ports(struct dwc3 *dwc)
/* xhci regs is not mapped yet, do it temperary here */
if (dwc->xhci_resources[0].start) {
xhci_regs = ioremap(dwc->xhci_resources[0].start, DWC3_XHCI_REGS_END);
if (IS_ERR(xhci_regs)) {
if (!xhci_regs) {
dev_err(dwc->dev, "Failed to ioremap xhci_regs\n");
return;
}