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authorFrederic Weisbecker <fweisbec@gmail.com>2008-11-16 05:57:26 +0100
committerIngo Molnar <mingo@elte.hu>2008-11-16 07:55:23 +0100
commit1c80025a49855b12fa09bb6db71820e3367b1369 (patch)
tree063fe72ed9bb3410c3293c83a7882cecc46e7410 /kernel/Kconfig.hz
parenttracing/ftrace: fix unexpected -EINVAL when longest tracer name is set (diff)
downloadlinux-1c80025a49855b12fa09bb6db71820e3367b1369.tar.xz
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tracing/ftrace: change the type of the init() callback
Impact: extend the ->init() method with the ability to fail This bring a way to know if the initialization of a tracer successed. A tracer must return 0 on success and a traditional error (ie: -ENOMEM) if it fails. If a tracer fails to init, it is free to print a detailed warn. The tracing api will not and switch to a new tracer will just return the error from the init callback. Note: this will be used for the return tracer. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/Kconfig.hz')
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