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Fix coverity defects: zfs channel programs

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CID 173243, 173245:  Memory - corruptions  (OVERRUN)
 Added size argument to lcompat_sprintf() to avoid use of INT_MAX

CID 173244:  Integer handling issues  (OVERFLOW_BEFORE_WIDEN)
 Added cast to uint64_t to avoid a 32 bit overflow warning

CID 173242:  Integer handling issues  (CONSTANT_EXPRESSION_RESULT)
 Conditionally removed unused luai_numisnan() floating point check

CID 173241:  Resource leaks  (RESOURCE_LEAK)
 Added missing close(fd) on error path

CID 173240:    (UNINIT)
Fixed uninitialized variable in get_special_prop()

CID 147560:  Null pointer dereferences  (NULL_RETURNS)
Cleaned up bad code merge in dsl_dataset_promote_check()

CID 28475:  Memory - illegal accesses  (OVERRUN)
Fixed lcompat_sprintf() to use a size paramater

CID 28418, 28422:  Error handling issues  (CHECKED_RETURN)
Added function result cast to (void) to avoid warning

CID 23935, 28411, 28412:  Memory - corruptions  (ARRAY_VS_SINGLETON)
Added casts to avoid exposing result as an array

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #7181
This commit is contained in:
Don Brady
2018-02-20 12:19:42 -07:00
committed by Brian Behlendorf
parent 7b30ee6baf
commit cbce581353
14 changed files with 24 additions and 19 deletions
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module/zfs/dsl_dataset.c
+1 -4
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@@ -2750,12 +2750,8 @@ dsl_dataset_promote_check(void *arg, dmu_tx_t *tx)
return (err);
hds = ddpa->ddpa_clone;
snap = list_head(&ddpa->shared_snaps);
origin_ds = snap->ds;
max_snap_len = MAXNAMELEN - strlen(ddpa->ddpa_clonename) - 1;
snap = list_head(&ddpa->origin_snaps);
if (dsl_dataset_phys(hds)->ds_flags & DS_FLAG_NOPROMOTE) {
promote_rele(ddpa, FTAG);
return (SET_ERROR(EXDEV));
@@ -2789,6 +2785,7 @@ dsl_dataset_promote_check(void *arg, dmu_tx_t *tx)
/* compute origin's new unique space */
snap = list_tail(&ddpa->clone_snaps);
ASSERT(snap != NULL);
ASSERT3U(dsl_dataset_phys(snap->ds)->ds_prev_snap_obj, ==,
origin_ds->ds_object);
dsl_deadlist_space_range(&snap->ds->ds_deadlist,