eCryptfs: remove assignments in if-statements

Remove assignments in if-statements.

Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 89dbbbb..307f7ee 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -762,8 +762,9 @@
 		rc = PTR_ERR(tmp_page);
 		goto out;
 	}
-	if ((rc = ecryptfs_prepare_write_no_truncate(file, tmp_page, start,
-						     (start + num_zeros)))) {
+	rc = ecryptfs_prepare_write_no_truncate(file, tmp_page, start,
+						(start + num_zeros));
+	if (rc) {
 		ecryptfs_printk(KERN_ERR, "Error preparing to write zero's "
 				"to page at index [0x%.16x]\n",
 				index);