Messages in this thread | | | Date | Thu, 28 Jun 2012 10:46:20 +0800 | From | Wen Congyang <> | Subject | Re: [PATCH 5/8] don't print message if request_resource() failed |
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At 06/27/2012 12:23 PM, David Rientjes Wrote: > On Tue, 26 Jun 2012, Wen Congyang wrote: > >> If register_memory_resource() fails, the caller(add_memory()) will >> return -EEXIST, and add_memory() returns -EEXIST only when >> register_memory_resource() fails. The function acpi_memory_enable_device() >> doesn't treat such erro as a fetal error, and don't want this message. >> The function that calls add_memory() has printed message if add_memory() >> failed, so don't print message in register_memory_resource(). >> > > That may be true for acpi_memory_enable_device(), but have you checked > other callers to add_memory()? >
There are four functions that call add_memory(): 1. acpi_memory_enable_device() 2. memory_probe_store() This caller is the callback of system call write. The user can get the return value by errno. 3. add_memory_merged() This caller does not check the return value. I guess add_memory() always successes in this place. 4. bp_state reserve_additional_memory() This caller prints message if add_memory() failed.
So I think we can remove this message...
Thanks Wen Congyang
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