Change the 'ret' variable in tegra_sha_do_update() from unsigned int to int, as it needs to store either negative error codes or zero returned by tegra_se_host1x_submit(). No effect on runtime. Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>