lib/mpi: added comment on divide by 0 case
Comment explains that existing clients do not call this function
with dsize == 0, which means that 1/0 should not happen.
Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Reviewed-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Morris <jmorris@namei.org>
diff --git a/lib/mpi/mpih-div.c b/lib/mpi/mpih-div.c
index 87ede16..cde1aae 100644
--- a/lib/mpi/mpih-div.c
+++ b/lib/mpi/mpih-div.c
@@ -217,6 +217,10 @@
case 0:
/* We are asked to divide by zero, so go ahead and do it! (To make
the compiler not remove this statement, return the value.) */
+ /*
+ * existing clients of this function have been modified
+ * not to call it with dsize == 0, so this should not happen
+ */
return 1 / dsize;
case 1:
