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dlm: sanitize work_start() in lowcomms.c

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The create_workqueue() returns NULL if failed rather than ERR_PTR().
Fix error checking and remove unnecessary variable 'error'.

Signed-off-by: Namhyung Kim <[email protected]>
Cc: Tejun Heo <[email protected]>
Signed-off-by: David Teigland <[email protected]>
This commit is contained in:
Namhyung Kim 2010-12-13 13:42:24 -06:00 • committed by David Teigland
commit b9d4105279
1 changed files with 6 additions and 9 deletions
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15
fs/dlm/lowcomms.c
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@ -1468,22 +1468,19 @@ static void work_stop(void)
static int work_start(void)
{
int error;
recv_workqueue = alloc_workqueue("dlm_recv", WQ_MEM_RECLAIM |
WQ_HIGHPRI | WQ_FREEZEABLE, 0);
error = IS_ERR(recv_workqueue);
if (error) {
log_print("can't start dlm_recv %d", error);
return error;
if (!recv_workqueue) {
log_print("can't start dlm_recv");
return -ENOMEM;
}
send_workqueue = alloc_workqueue("dlm_send", WQ_MEM_RECLAIM |
WQ_HIGHPRI | WQ_FREEZEABLE, 0);
error = IS_ERR(send_workqueue);
if (error) {
log_print("can't start dlm_send %d", error);
if (!send_workqueue) {
log_print("can't start dlm_send");
destroy_workqueue(recv_workqueue);
return error;
return -ENOMEM;
}
return 0;