eCryptfs: Unlock page in write_begin error path
Unlock the page in error path of ecryptfs_write_begin(). This may
happen, for example, if decryption fails while bring the page
up-to-date.
Cc: <stable@kernel.org>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 5e15013..6a44148 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -381,6 +381,11 @@
&& (pos != 0))
zero_user(page, 0, PAGE_CACHE_SIZE);
out:
+ if (unlikely(rc)) {
+ unlock_page(page);
+ page_cache_release(page);
+ *pagep = NULL;
+ }
return rc;
}