kernel: interrupts: Fix the workqueues slide

Signed-off-by: Miquel Raynal <[email protected]>

slides/kernel-driver-development-interrupts/kernel-driver-development-interrupts.tex

@@ -255,15 +255,16 @@ \subsection{Interrupt Management}
   \item Workqueues are a general mechanism for deferring work. It is
     not limited in usage to handling interrupts. It can typically
     be used for background jobs.
-  \item Functions registered to run in workqueues are called workers:
+  \item Functions registered to run in workqueues are called works:
     \begin{itemize}
-    \item Workers can be created with the macro \kfunc{INIT_WORK}
-    \item Workers are executed in thread context, which means:
+    \item They can be created with the macro \kfunc{INIT_WORK}
+    \item When scheduled, they become threads (called workers) running in
+      process context, which means:
       \begin{itemize}
       \item All interrupts are enabled
       \item Sleeping is allowed
       \end{itemize}
-    \item Workers can be queued on:
+    \item Works can be queued on:
       \begin{itemize}
       \item The default workqueue, with \kfunc{schedule_work}
       \item A workqueue allocated by the subsystem or the drivers, with