In the setup_vm_debug() function, the case statement for 'p' option
is written as 'case'p':' without a space between 'case' and the
character constant. While this is syntactically valid C, it violates
the Linux kernel coding style, which requires a space after 'case'.
This patch adds the missing space to comply with coding standards.

Signed-off-by: Zhang Chujun <zhangchujun@cmss.chinamobile.com>

diff --git a/mm/debug.c b/mm/debug.c
index 64ddb0c4b4be..d860864063be 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -327,7 +327,7 @@ static int __init setup_vm_debug(char *str)
 
 	while (*str) {
 		switch (tolower(*str)) {
-		case'p':
+		case 'p':
 			__page_init_poisoning = true;
 			break;
 		default:
-- 
2.50.1.windows.1