[PATCH] jffs2: potential memory leaks in jffs2_scan_medium()

[Florin Malita <fmalita@gmail.com>]

This patch deals with 3 return paths that fail to perform proper cleanup
(which can result into leaking 'flashbuf' and/or 's').

Coverity IDs: 676, 1301

Signed-off-by: Florin Malita <fmalita@gmail.com>
---

 fs/jffs2/scan.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 6161808..4a068de 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -128,12 +128,12 @@ #endif
 	}
 
 	if (jffs2_sum_active()) {
-		s = kmalloc(sizeof(struct jffs2_summary), GFP_KERNEL);
+		s = kzalloc(sizeof(struct jffs2_summary), GFP_KERNEL);
 		if (!s) {
 			JFFS2_WARNING("Can't allocate memory for summary\n");
-			return -ENOMEM;
+			ret = -ENOMEM;
+			goto out;
 		}
-		memset(s, 0, sizeof(struct jffs2_summary));
 	}
 
 	for (i=0; i<c->nr_blocks; i++) {
@@ -194,7 +194,7 @@ #endif
 				if (c->nextblock) {
 					ret = file_dirty(c, c->nextblock);
 					if (ret)
-						return ret;
+						goto out;
 					/* deleting summary information of the old nextblock */
 					jffs2_sum_reset_collected(c->summary);
 				}
@@ -205,7 +205,7 @@ #endif
 			} else {
 				ret = file_dirty(c, jeb);
 				if (ret)
-					return ret;
+					goto out;
 			}
 			break;