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Under some circumstances it happens that the connected PHY can't be
powered up properly, in which case the cleanup path currently crashes
because it checks the tegra->transceiver field using !IS_ERR(), which
will succeed because it is in fact NULL. Dereferencing that pointer
causes an oops in tegra_ehci_probe().
This patch fixes the issue by adding an additional label into the
cleanup path to separately take down the PHY and the transceiver.
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
8fefcfdd27