Commit 654842ef authored by Nicolai Stange's avatar Nicolai Stange Committed by Herbert Xu

lib/mpi: mpi_write_sgl(): fix style issue with lzero decrement

Within the copying loop in mpi_write_sgl(), we have

  if (lzeros > 0) {
    ...
    lzeros -= sizeof(alimb);
  }

However, at this point, lzeros < sizeof(alimb) holds. Make this fact
explicit by rewriting the above to

  if (lzeros) {
    ...
    lzeros = 0;
  }
Signed-off-by: default avatarNicolai Stange <nicstange@gmail.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent f2d1362f
......@@ -402,14 +402,14 @@ int mpi_write_to_sgl(MPI a, struct scatterlist *sgl, unsigned *nbytes,
#else
#error please implement for this limb size.
#endif
if (lzeros > 0) {
if (lzeros) {
mpi_limb_t *limb1 = (void *)p - sizeof(alimb);
mpi_limb_t *limb2 = (void *)p - sizeof(alimb)
+ lzeros;
*limb1 = *limb2;
p -= lzeros;
y = lzeros;
lzeros -= sizeof(alimb);
lzeros = 0;
}
p = p - (sizeof(alimb) - y);
......
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