5.0-stable review patch. If anyone has any objections, please let me know.
------------------ From: Thierry Reding <[email protected]> commit 0326ccb5feac6eac35ba6254260e2774277cd976 upstream. During initialization, the host and super-speed power domains will contain an ERR_PTR() encoded error code rather than being NULL. To avoid a crash, use a !IS_ERR_OR_NULL() condition during cleanup. Signed-off-by: Thierry Reding <[email protected]> Fixes: 6494a9ad86de ("usb: xhci: tegra: Add genpd support") Cc: stable <[email protected]> Reviewed-by: Jon Hunter <[email protected]> Acked-by: Mathias Nyman <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/host/xhci-tegra.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -941,9 +941,9 @@ static void tegra_xusb_powerdomain_remov device_link_del(tegra->genpd_dl_ss); if (tegra->genpd_dl_host) device_link_del(tegra->genpd_dl_host); - if (tegra->genpd_dev_ss) + if (!IS_ERR_OR_NULL(tegra->genpd_dev_ss)) dev_pm_domain_detach(tegra->genpd_dev_ss, true); - if (tegra->genpd_dev_host) + if (!IS_ERR_OR_NULL(tegra->genpd_dev_host)) dev_pm_domain_detach(tegra->genpd_dev_host, true); }
