rfkill: copy the name into the rfkill struct
commit b7bb1100 upstream. Some users of rfkill, like NFC and cfg80211, use a dynamic name when allocating rfkill, in those cases dev_name(). Therefore, the pointer passed to rfkill_alloc() might not be valid forever, I specifically found the case that the rfkill name was quite obviously an invalid pointer (or at least garbage) when the wiphy had been renamed. Fix this by making a copy of the rfkill name in rfkill_alloc(). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
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