printk: suppress empty continuation lines

[cascardo/linux.git] / kernel / printk / printk.c

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index d5e3973..de08fc9 100644 (file)
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1769,6 +1769,10 @@ static size_t log_output(int facility, int level, enum log_flags lflags, const c
                cont_flush();
        }
 
+       /* Skip empty continuation lines that couldn't be added - they just flush */
+       if (!text_len && (lflags & LOG_CONT))
+               return 0;
+
        /* If it doesn't end in a newline, try to buffer the current line */
        if (!(lflags & LOG_NEWLINE)) {
                if (cont_add(facility, level, lflags, text, text_len))