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Gvozden Neskovic a64f903b06 Fixes for issues found with cppcheck tool 
The patch fixes small number of errors/false positives reported by `cppcheck`,
static analysis tool for C/C++.

cppcheck 1.72

$ cppcheck . --force --quiet
[cmd/zfs/zfs_main.c:4444]: (error) Possible null pointer dereference: who_perm
[cmd/zfs/zfs_main.c:4445]: (error) Possible null pointer dereference: who_perm
[cmd/zfs/zfs_main.c:4446]: (error) Possible null pointer dereference: who_perm
[cmd/zpool/zpool_iter.c:317]: (error) Uninitialized variable: nvroot
[cmd/zpool/zpool_vdev.c:1526]: (error) Memory leak: child
[lib/libefi/rdwr_efi.c:1118]: (error) Memory leak: efi_label
[lib/libuutil/uu_misc.c:207]: (error) va_list 'args' was opened but not closed by va_end().
[lib/libzfs/libzfs_import.c:1554]: (error) Dangerous usage of 'diskname' (strncpy doesn't always null-terminate it).
[lib/libzfs/libzfs_sendrecv.c:3279]: (error) Dereferencing 'cp' after it is deallocated / released
[tests/zfs-tests/cmd/file_write/file_write.c:154]: (error) Possible null pointer dereference: operation
[tests/zfs-tests/cmd/randfree_file/randfree_file.c:90]: (error) Memory leak: buf
[cmd/zinject/zinject.c:1068]: (error) Uninitialized variable: dataset
[module/icp/io/sha2_mod.c:698]: (error) Uninitialized variable: blocks_per_int64

Signed-off-by: Gvozden Neskovic <neskovic@gmail.com>
Signed-off-by: Chunwei Chen <david.chen@osnexus.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1392
 		2016-07-27 13:31:22 -07:00
..
arc_summary Update arc_summary.py for prefetch changes 2016-07-19 09:12:41 -07:00
arcstat Update arcstat.py to remove deprecated rmis reference. 2015-12-04 15:28:45 -08:00
dbufstat Make arc_summary.py and dbufstat.py compatible with python3 2016-01-07 17:09:59 -08:00
fsck_zfs Add /sbin/fsck.zfs helper 2013-01-09 16:54:58 -08:00
mount_zfs Make zfs mount according to relatime config in dataset 2016-04-05 18:55:59 -07:00
raidz_test Fixes and enhancements of SIMD raidz parity 2016-07-19 16:43:07 -07:00
vdev_id Add extra keyword 'slot' to vdev_id.conf 2015-08-30 10:03:56 -07:00
zdb OpenZFS 6314 - buffer overflow in dsl_dataset_name 2016-06-28 13:47:03 -07:00
zed Ensure zed _finish_daemonize() leaves fds 0-2 open 2016-03-08 17:46:41 -08:00
zfs Fixes for issues found with cppcheck tool 2016-07-27 13:31:22 -07:00
zhack OpenZFS 6314 - buffer overflow in dsl_dataset_name 2016-06-28 13:47:03 -07:00
zinject Fixes for issues found with cppcheck tool 2016-07-27 13:31:22 -07:00
zpios Fix minor spelling mistakes 2016-06-06 14:45:26 -07:00
zpool Fixes for issues found with cppcheck tool 2016-07-27 13:31:22 -07:00
zstreamdump OpenZFS 2605, 6980, 6902 2016-06-28 13:47:02 -07:00
ztest OpenZFS 6314 - buffer overflow in dsl_dataset_name 2016-06-28 13:47:03 -07:00
zvol_id OpenZFS 6314 - buffer overflow in dsl_dataset_name 2016-06-28 13:47:03 -07:00
Makefile.am SIMD implementation of vdev_raidz generate and reconstruct routines 2016-06-21 09:27:26 -07:00