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>

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>
Tyler Hicks
1 parent 57db4e8d73
Showing 1 changed file with 5 additions and 0 deletions Side-by-side Diff
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;
 }
...	...	@@ -381,6 +381,11 @@
381	381	&& (pos != 0))
382	382	zero_user(page, 0, PAGE_CACHE_SIZE);
383	383	out:
	384	+ if (unlikely(rc)) {
	385	+ unlock_page(page);
	386	+ page_cache_release(page);
	387	+ *pagep = NULL;
	388	+ }
384	389	return rc;
385	390	}
386	391