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libdm: add test for dm_task_get_message_response()

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Coverity notices dm_task_get_message_response() result should be
checked for NULL which should not be passed to dm_pool_strdup().
This commit is contained in:
Zdenek Kabelac 2015-11-09 09:50:46 +01:00
parent 84303dc17a
commit 3cadc1c87e
2 changed files with 6 additions and 1 deletions
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1
WHATS_NEW_DM
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@ -1,5 +1,6 @@
Version 1.02.111 -
====================================
Test dm_task_get_message_response for !NULL in dm_stats_print_region().
Add checks for failing dm_stats_create() in dmsetup.
Add missing fifo close when failed to initialize client connection.

6
libdm/libdm-stats.c
View File

@ -1259,6 +1259,7 @@ char *dm_stats_print_region(struct dm_stats *dms, uint64_t region_id,
{
char *resp = NULL;
struct dm_task *dmt = NULL;
const char *response;
if (!_stats_bound(dms))
return_0;
@ -1269,7 +1270,10 @@ char *dm_stats_print_region(struct dm_stats *dms, uint64_t region_id,
if (!dmt)
return_0;
resp = dm_pool_strdup(dms->mem, dm_task_get_message_response(dmt));
if (!(response = dm_task_get_message_response(dmt)))
return_0;
resp = dm_pool_strdup(dms->mem, response);
dm_task_destroy(dmt);
if (!resp)