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[ALSA] Remove vmalloc wrapper, kfree_nocheck()

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- Remove vmalloc wrapper
- Add release_and_free_resource() to remove kfree_nocheck() from each driver
  and simplify the code

Signed-off-by: Takashi Iwai <[email protected]>
This commit is contained in:
Takashi Iwai 2005-10-10 11:56:31 +02:00 • committed by Jaroslav Kysela
commit b1d5776d86
44 changed files with 86 additions and 311 deletions
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17
Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
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@ -1433,25 +1433,10 @@
<informalexample>
<programlisting>
<![CDATA[
if (chip->res_port) {
release_resource(chip->res_port);
kfree_nocheck(chip->res_port);
}
release_and_free_resource(chip->res_port);
]]>
</programlisting>
</informalexample>
As you can see, the resource pointer is also to be freed
via <function>kfree_nocheck()</function> after
<function>release_resource()</function> is called. You
cannot use <function>kfree()</function> here, because on ALSA,
<function>kfree()</function> may be a wrapper to its own
allocator with the memory debugging. Since the resource pointer
is allocated externally outside the ALSA, it must be released
via the native
<function>kfree()</function>.
<function>kfree_nocheck()</function> is used for that; it calls
the native <function>kfree()</function> without wrapper.
</para>
<para>