Commit a6d68ecc authored Jan 26, 2012 by Dmitry Kasatkin Committed by James Morris Feb 02, 2012

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>

parent 4877e056

lib/mpi/mpih-div.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -217,6 +217,10 @@ mpihelp_divrem(mpi_ptr_t qp, mpi_size_t qextra_limbs,
		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: