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authorDavid Rientjes <rientjes@google.com>2017-09-08 16:13:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-08 18:26:47 -0700
commitb6b1fd2a6bedd533aeed83924d7be0e944fded9f (patch)
tree406e66f717c827dd6c67d9953a9e7bfefb9c9278 /mm
parent8606a1a94da5c4e49c0fb28af62d2e75c6747716 (diff)
downloadlinux-b6b1fd2a6bedd533aeed83924d7be0e944fded9f.tar.gz
mm/swapfile.c: fix swapon frontswap_map memory leak on error
Free frontswap_map if an error is encountered before enable_swap_info().

Signed-off-by: David Rientjes <rientjes@google.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: <stable@vger.kernel.org>	[4.12+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/swapfile.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 12251d386dc7..bf91dc9e7a79 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -3291,6 +3291,7 @@ bad_swap:
 	spin_unlock(&swap_lock);
 	vfree(swap_map);
 	kvfree(cluster_info);
+	kvfree(frontswap_map);
 	if (swap_file) {
 		if (inode && S_ISREG(inode->i_mode)) {
 			inode_unlock(inode);