system: vold: Close crypto block device if it was created

Crypto block device is needed for device mapper based data
encryption for any partition. Close the device file pointer
when data packet is encrypted.

CRs-Fixed: 2417032
Change-Id: I0fa7c4829665b8a505a5abf598bb54b7835f71e0

EncryptInplace.cpp

@@ -344,7 +344,7 @@ static int cryptfs_enable_inplace_ext4(const char* crypto_blkdev, const char* re
 
 errout:
     close(data.realfd);
-    if (!strncmp(real_blkdev, crypto_blkdev, strlen(real_blkdev)))
+    if (strncmp(real_blkdev, crypto_blkdev, strlen(real_blkdev)))
        close(data.cryptofd);
 
     return rc;
@@ -479,7 +479,7 @@ errout:
     free(f2fs_info);
     free(data.buffer);
     close(data.realfd);
-    if (!strncmp(real_blkdev, crypto_blkdev, strlen(real_blkdev)))
+    if (strncmp(real_blkdev, crypto_blkdev, strlen(real_blkdev)))
         close(data.cryptofd);
 
     return rc;
@@ -532,7 +532,7 @@ static int cryptfs_enable_inplace_full(const char* crypto_blkdev, const char* re
         goto errout;
     }
 
-    if (!strncmp(real_blkdev, crypto_blkdev, strlen(real_blkdev))) {
+    if (strncmp(real_blkdev, crypto_blkdev, strlen(real_blkdev))) {
         if (lseek64(cryptofd, i * CRYPT_SECTOR_SIZE, SEEK_SET) < 0) {
             PLOG(ERROR) << "Cannot seek to previously encrypted point on " << crypto_blkdev;
             goto errout;
@@ -600,7 +600,7 @@ static int cryptfs_enable_inplace_full(const char* crypto_blkdev, const char* re
 
 errout:
     close(realfd);
-    if (!strncmp(real_blkdev, crypto_blkdev, strlen(real_blkdev)))
+    if (strncmp(real_blkdev, crypto_blkdev, strlen(real_blkdev)))
         close(cryptofd);
 
     return rc;