canopen: Use ssize_t for the return value of read_cb
Use ssize_t for the return value of read_cb. Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
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@ -127,7 +127,7 @@ static int canopen_settings_set(const char *key, size_t len_rd,
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{
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const char *next;
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int nlen;
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int len;
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ssize_t len;
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nlen = settings_name_next(key, &next);
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