libuuid: add error checking to syscalls in get_clock()

Also remove redundant close() of state_fd, since the fclose() of
state_f will result in the fd being closed.

Addresses-Coverity-Id: #1049146
Addresses-Coverity-Id: #26092

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
libss: fix potential null dereference if realloc() fails

Addresses-Coverity-Id: #1153630

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
mke2fs, tune2fs: remove unneeded access() call

Addresses-Coverity-Id: #709536
Addresses-Coverity-Id: #709535

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
blkid: fix gcc -Wall nits

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
libblkid: remove unneeded pointer checks

Addresses-Coverity-Id: #207522
Addresses-Coverity-Id: #207523

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
libblkid: fix integer width issue in probe_fat

Addresses-Coverity-Id: #1049162

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
libblkid: add error checking for rename() while saving the blkid cache

Addresses-Coverity-Id: #1049141

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
blkid: fix blkid -o list formatting with columns > 160

This bug is also in the util-linux version of blkid.

Addresses-Coverity-Id: #1049158

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>