X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=mm%2Fbacking-dev.c;h=ce682f7a4f29d161189f47fd7e376d69bea2359d;hb=e25a64c4017e3a3cda17454b040737e410a12991;hp=37d9edcd14cfbbff06510be795b4a6e125b95336;hpb=5b4197845ad1a33bc57da7ee5ea41de58c2f86bf;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index 37d9edc..ce682f7 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -652,7 +652,7 @@ int pdflush_proc_obsolete(struct ctl_table *table, int write,
 {
 	char kbuf[] = "0\n";
 
-	if (*ppos) {
+	if (*ppos || *lenp < sizeof(kbuf)) {
 		*lenp = 0;
 		return 0;
 	}