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commit 2607639992f6 "Improve error handling in /proc/[pid]/ virtual files." changed the return value of the /proc/PID formatting functions to return -1 instead of 0 in the error case to allow a filesize of 0. The patch neglected to change this behaviour for /proc/PID/fd content. This patch fixes that. Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
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