[Bug 210709] freebsd/sys/dev/pcf/pcf_isa.c:112]: (style) Suspicious condition

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=210709

            Bug ID: 210709
           Summary: freebsd/sys/dev/pcf/pcf_isa.c:112]: (style) Suspicious
                    condition
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: dcb314 at hotmail.com

freebsd/sys/dev/pcf/pcf_isa.c:112]: (style) Suspicious condition (assignment +
comparison); Clarify expression with parentheses.

Source code is

    if ((error = resource_int_value(PCF_NAME, 0, "port", &port) != 0))
        return (error);

Maybe better code

    if ((error = resource_int_value(PCF_NAME, 0, "port", &port)) != 0)
        return error;

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