fsck.f2fs: deal with realloc failure
fsck.f2fs: deal with realloc failure

Deal with realloc failure to avoid memory leak and memory free.

Change-Id: Ic0d01c03ef9390e3c9fd05c9bb386fa929698133
Signed-off-by: Xue Liu <7a8409a5ff413510d343df4552e688f657635449@huawei.com>
Signed-off-by: Jaegeuk Kim <71255387a32c360dfbe6dfb7aaeb123bf1dc8cb6@kernel.org>

TeamTwisted/android_external_f2fs-tools,TeamTwisted/android_external_f2fs-tools