io_storage: use unsigned int for index
This change avoids warning about type conversion.

Signed-off-by: Yann Gautier <yann.gautier@st.com>
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>
1 parent aa8d5f8 commit 5a8e2aeec49aa4b26f554db2afb61109426b6869
@Etienne Carriere Etienne Carriere authored on 7 Jun 2017
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drivers/io/io_storage.c