ath: Make ath_dbg void not int
The return value is never used so make it void. Reduces object size a tiny bit. $ size drivers/net/wireless/ath/built-in.o* text data bss dec hex filename 1164175 16235 212032 1392442 153f3a drivers/net/wireless/ath/built-in.o.new 1164819 16235 212032 1393086 1541be drivers/net/wireless/ath/built-in.o.old Signed-off-by: NJoe Perches <joe@perches.com> Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
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