From: Anatolii Nikulin <nikulin.a@samsung.com>
Date: Tue, 29 Sep 2015 13:23:05 +0000 (+0300)
Subject: [FIX] error handling for copy from user
X-Git-Tag: accepted/tizen/2.4/mobile/20151029.024950~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fchanges%2F84%2F48784%2F2;p=kernel%2Fswap-modules.git

[FIX] error handling for copy from user

swap_msg_flush() should not call if strncpy_from_user() return error

Change-Id: I778abaca7078b4594a3bc1364ed3ef181c174648
Signed-off-by: Anatolii Nikulin <nikulin.a@samsung.com>
---

diff --git a/ks_features/ksf_msg.c b/ks_features/ksf_msg.c
index 94d2151..b465359 100644
--- a/ks_features/ksf_msg.c
+++ b/ks_features/ksf_msg.c
@@ -240,7 +240,7 @@ void ksf_msg_file_entry_open(int fd, enum file_api_t api, const char *path,
 	n = strncpy_from_user(p, ofile, size);
 	if (n < 0) {
 		printk(KSF_PREFIX "cannot copy ofile\n");
-		swap_msg_put(m);
+		goto put_msg;
 	}
 
 	swap_msg_flush(m, ret + n + 1);