1 files changed, 1 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 57d8a16438a0..8c28eb0cbdac 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -567,7 +567,7 @@ static void __init early_cmdline_parse(void)
         if ((long)_prom->chosen > 0)
                 l = prom_getprop(_prom->chosen, "bootargs", p, COMMAND_LINE_SIZE-1);
 #ifdef CONFIG_CMDLINE
-        if (l == 0) /* dbl check */
+        if (l <= 0 || p[0] == '\0') /* dbl check */
                 strlcpy(RELOC(prom_cmd_line),
                         RELOC(CONFIG_CMDLINE), sizeof(prom_cmd_line));
 #endif /* CONFIG_CMDLINE */