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-rw-r--r--arch/powerpc/kernel/prom_init.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 57d8a16438a..8c28eb0cbda 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 */