thunderbolt: Fix to check the return value of kmemdup
commit fd21b79e upstream. uuid in add_switch is allocted via kmemdup which can fail. The patch logs the error and cleans up the allocated memory for switch. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> [PG: "goto out" ---> "return" for older 4.18.x code base.] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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