typo fixes: aquire -> acquire

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
index 635cbb9..bb18115 100644
--- a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
+++ b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
@@ -3048,7 +3048,7 @@
         </para>
 
         <para>
-          If you aquire a spinlock in the interrupt handler, and the
+          If you acquire a spinlock in the interrupt handler, and the
         lock is used in other pcm callbacks, too, then you have to
         release the lock before calling
         <function>snd_pcm_period_elapsed()</function>, because