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Update for cppcheck v1.80

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Resolve new warnings and errors from cppcheck v1.80.

* [lib/libshare/libshare.c:543]: (warning)
  Possible null pointer dereference: protocol
* [lib/libzfs/libzfs_dataset.c:2323]: (warning)
  Possible null pointer dereference: srctype
* [lib/libzfs/libzfs_import.c:318]: (error)
  Uninitialized variable: link
* [module/zfs/abd.c:353]: (error) Uninitialized variable: sg
* [module/zfs/abd.c:353]: (error) Uninitialized variable: i
* [module/zfs/abd.c:385]: (error) Uninitialized variable: sg
* [module/zfs/abd.c:385]: (error) Uninitialized variable: i
* [module/zfs/abd.c:553]: (error) Uninitialized variable: i
* [module/zfs/abd.c:553]: (error) Uninitialized variable: sg
* [module/zfs/abd.c:763]: (error) Uninitialized variable: i
* [module/zfs/abd.c:763]: (error) Uninitialized variable: sg
* [module/zfs/abd.c:305]: (error) Uninitialized variable: tmp_page
* [module/zfs/zpl_xattr.c:342]: (warning)
   Possible null pointer dereference: value
* [module/zfs/zvol.c:208]: (error) Uninitialized variable: p

Convert the following suppression to inline.

* [module/zfs/zfs_vnops.c:840]: (error)
  Possible null pointer dereference: aiov

Exclude HAVE_UIO_ZEROCOPY and HAVE_DNLC from analysis since
these macro's will never be defined until this functionality
is implemented.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Giuseppe Di Natale <dinatale2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6879
This commit is contained in:
Brian Behlendorf
2017-11-18 14:08:00 -08:00
committed by Tony Hutter
parent 7a8bef3983
commit aebc5df418
9 changed files with 23 additions and 50 deletions
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lib/libzfs/libzfs_dataset.c
+3 -1
View File
@@ -2244,8 +2244,10 @@ static void
get_source(zfs_handle_t *zhp, zprop_source_t *srctype, char *source,
char *statbuf, size_t statlen)
{
if (statbuf == NULL || *srctype == ZPROP_SRC_TEMPORARY)
if (statbuf == NULL ||
srctype == NULL || *srctype == ZPROP_SRC_TEMPORARY) {
return;
}
if (source == NULL) {
*srctype = ZPROP_SRC_NONE;
lib/libzfs/libzfs_import.c
+1 -1
View File
@@ -309,7 +309,7 @@ zpool_label_disk_wait(char *path, int timeout_ms)
dev = udev_device_new_from_subsystem_sysname(udev,
"block", sysname);
if ((dev != NULL) && udev_device_is_ready(dev)) {
struct udev_list_entry *links, *link;
struct udev_list_entry *links, *link = NULL;
ret = 0;
links = udev_device_get_devlinks_list_entry(dev);