CID 1269933 Uninitialized scalar variable (UNINIT)
This CID isn't really an error but it is best for both valgrind and
coverity cleanness to not write uninitialized data. Added an
initializer for async_command in btl_openib_component_close.
CID 1269930 Uninitialized scalar variable (UNINIT)
Same as above. Best not to write uninitialized data. Added an
initializer for async_command.
CID 1269701 Logically dead code (DEADCODE)
Coverity is correct. The smallest_pp_qp will always be 0. Changed the
initial value so that the smallest_pp_qp is set as intended. If no
per-per queue pair exists then use the last shared queue pair. This
queue pair should have the smallest message size. This will reduce
buffer waste.
CID 1269713 Logically dead code (DEADCODE)
False positive but easy to silence. The two check are meaningless if
HAVE_XRC is 0 so protect them with #if HAVE_XRC.
CID 1269726 Division or modulo by zero (DIVIDE_BY_ZERO)
Indeed an issue. If we get an invalid value for rd_win then this will
cause a divide-by-zero exception. Added a check to ensure rd_win is >
0. Also updated the help message to reflect this requirement.
CID 1269672 Ignoring number of bytes read (CHECKED_RETURN)
This error was somewhat intentional. Linux parameter files are
probably not empty but it is safer to check the return code of read to
make sure we got something. If 0 bytes are read this code could SEGV
whe running strtoull.
CID 1269836 Unintentional integer overflow (OVERFLOW_BEFORE_WIDEN)
Add a range check to read_module_param to ensure we do not
overflow. In the future it might be worthwhile to report an error
because these parameters should never cause overflow in this
calculation.
CID 1269692 Calling risky function (DC.WEAK_CRYPTO)
??? This call was added in 2006 but I see no calls to the rest of the
rand48 family of functions. Anyway, we SHOULD NEVER be calling seed48,
srand, etc because it messes with user code. Removed the call to
seed48.
CID 1269823 Dereference null return value (NULL_RETURNS)
This is likely a false positive. The endpoint lock is being held so no
other thread should be able to remove fragments from the list. Also,
mca_btl_openib_endpoint_post_send should not be removing items from
the list. If a NULL fragment is ever returned it will likely be a
coding error on the part of an Open MPI developer. Added an assert()
to catch this and quiet the coverity error.
CID 1269671 Unchecked return value (CHECKED_RETURN)
Added a check for the return code of mca_btl_openib_endpoint_post_send
to quiet the coverity error. It is unlikely this error path will be
traversed.
CID 1270229 Missing break in switch (MISSING_BREAK)
Add a comment to indicate that the fall-through is intentional.
CID 1269735 Dereference after null check (FORWARD_NULL)
There should always be an endpoint when handling a work
completion. The endpoint is either stored on the fragment or can be
looked up using the immediate data. Move the immediate data code up
and add an assert for a NULL endpoint.
CID 1269740 Dereference after null check (FORWARD_NULL)
CID 1269741 Explicit null dereferenced (FORWARD_NULL)
Similar to CID 1269735 fix.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
CID 1292483 Uninitialized pointer read (UNINIT)
Initialize the method and credential members of the opal_sec_cred_t to
avoid possible invalid read when calling cleanup_cred.
CID 1292484 Double free (USE_AFTER_FREE)
Set method and credential members to NULL after freeing in
cleanup_cred.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
CID 1292738 Dereference after null check (FORWARD_NULL)
It is an error if NULL is passed for val in add_to_env_str. Removed
the NULL-check @ keyval_parse.c:253 and added a NULL check and an
error return.
CID 1292737 Logically dead code (DEADCODE)
Coverity is correct, the error code at the end of parse_line_new is
never reached. This means we fail to report parsing errors when
parsing -x and -mca lines in keyval files. I moved the error code into
the loop and removed the checks @ keyval_parse.c:314.
I also named the parse state enum type and updated parse_line_new to
use this type.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
Followup to open-mpi/ompi@65b66ab: if we're not debugging, then #if
out an entire block so that the compiler doesn't warn about variables
that are assigned and not used.
CID 70622 Dereference before null check (REVERSE_INULL)
CID 70459 Logically dead code (DEADCODE)
Cleanup some cludgy code which (among other things) reimplemented
strcat, strdup, and strchr. In the process this resolved two
outstanding coverity issues.
CID 70631 Dereference before null check (REVERSE_INULL)
best_module can not be NULL in this code path. Remove NULL check and
unnecessary goto statements.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
CID 71993 Logically dead code (DEADCODE)
As indicated by coverity proc can not be NULL at any point after the
continue. Removed dead code.
CID 1269682 Unchecked return value (CHECKED_RETURN)
Check the return code of orte_get_attribute. I assume we still need to
check for a NULL proc in case the aborted proc attribute is set to
NULL. This might be better as an assert ().
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
CID 70630 Dereference before null check
Cleaned up useless goto statements and deleted NULL check. If
mca_base_select returns success than best_module and best_component
will always be non-NULL.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
long double internal representation is arch specific,
and no conversion is done (yet), so MPI_LONG_DOUBLE should not
be used (yet) in heterogeneous mode
Talked to @ggouaillardet about this code. It was not intended to be committed to
master. Removing to fix coverity issue.
CID 1270134 Unchecked return value
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
CID 1047278 Unchecked return value
Updated check for mca_base_var_generate_full_name4 to match other
checks. Logically equivalent to the old check. Not a bug.
CID 1196685 Dereference null return
Added check for NULL when looking up the original variable for a
synonym.
CID 1269705 Logically dead code
Removed code that set the project to NULL. Code was intended to be
removed with an earlier commit that added the project name into the
component structure. Added code to actually support searching for a
group with a wildcard ('*').
CID 1292739 Dereference null return
CID 1269819 Dereference null return
Removed unnecessary string duplication and strchr.
CID 1287030 Logically dead code
Refactored fixup_files code and confirmed that the code in question is
not reachable. Removed the dead code.
CID 1292740 Use of untrusted string
Use strdup to silence coverity warning.
CID 1294413 Free of address-of expression
Reset mitem to NULL after the OPAL_LIST_FOREACH loop to ensure we
never try to free the list sentinel.
CID 1294414 Unchecked return value
Use (void) to indicate we do not care about the return code in this
instance.
CID 1294415 Resource leak
On error free all the base pointer.
Signed-off-by: Nathan Hjelm <hjelmn@lanl.gov>
