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-rw-r--r--arch/mips/kernel/setup.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 693e8d1a174c..38815f78c819 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -673,13 +673,15 @@ static void __init arch_mem_init(char **cmdline_p)
strlcpy(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
if (EXTEND_WITH_PROM && arcs_cmdline[0]) {
- strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
+ if (boot_command_line[0])
+ strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
strlcat(boot_command_line, arcs_cmdline, COMMAND_LINE_SIZE);
}
#if defined(CONFIG_CMDLINE_BOOL)
if (builtin_cmdline[0]) {
- strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
+ if (boot_command_line[0])
+ strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
strlcat(boot_command_line, builtin_cmdline, COMMAND_LINE_SIZE);
}
#endif