init/main.c: Minor cleanup for the setup_command_line() function

This is just a minor cleanup to make the code look a bit cleaner.

Link: https://lore.kernel.org/all/20240412081733.35925-3-ytcoode@gmail.com/
Signed-off-by: Yuntao Wang <ytcoode@gmail.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

diff --git a/init/main.c b/init/main.c
index 02156c3c58798c3dc6211c8da58b3c221d55306e..383796015113e4a5f8858a7b8d15c29b2f6dea41 100644 (file)
--- a/init/main.c
+++ b/init/main.c
@@ -633,11 +633,11 @@ static void __init setup_command_line(char *command_line)
                ilen = strlen(extra_init_args) + 4; /* for " -- " */
        }
 
-       len = xlen + strlen(boot_command_line) + 1;
+       len = xlen + strlen(boot_command_line) + ilen + 1;
 
-       saved_command_line = memblock_alloc(len + ilen, SMP_CACHE_BYTES);
+       saved_command_line = memblock_alloc(len, SMP_CACHE_BYTES);
        if (!saved_command_line)
-               panic("%s: Failed to allocate %zu bytes\n", __func__, len + ilen);
+               panic("%s: Failed to allocate %zu bytes\n", __func__, len);
 
        len = xlen + strlen(command_line) + 1;