uio-howto: example bug

Bug in demo program, checking wrong return value

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/DocBook/uio-howto.tmpl b/Documentation/DocBook/uio-howto.tmpl
index ddb05e98af0df99459c0735605c7208dfdd6892b..95618159e29b721ee82d3f19df6db0b41a2018e4 100644 (file)
--- a/Documentation/DocBook/uio-howto.tmpl
+++ b/Documentation/DocBook/uio-howto.tmpl
@@ -984,7 +984,7 @@ int main()
                return errno;
        }
        configfd = open("/sys/class/uio/uio0/device/config", O_RDWR);
-       if (uiofd < 0) {
+       if (configfd < 0) {
                perror("config open:");
                return errno;
        }