aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/sh/kernel/setup.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 6891cc93548..7eb7fdcce0f 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -84,6 +84,17 @@ static int __init early_parse_mem(char *p)
memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START;
size = memparse(p, &p);
+
+ if (size > __MEMORY_SIZE) {
+ static char msg[] __initdata = KERN_ERR
+ "Using mem= to increase the size of kernel memory "
+ "is not allowed.\n"
+ " Recompile the kernel with the correct value for "
+ "CONFIG_MEMORY_SIZE.\n";
+ printk(msg);
+ return 0;
+ }
+
memory_end = memory_start + size;
return 0;