tracing/fastboot: fix len of func buffer
Impact: fix possible stack overrun This is a port of a patch included in the mainline (KSYM_SYMBOL_LEN fixes). The current func len is not large enough to contain the max symbol len, the right size must be KSYM_SYMBOL_LEN. Signed-off-by: NStephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: NFrederic Weisbecker <fweisbec@gmail.com> Signed-off-by: NIngo Molnar <mingo@elte.hu>
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