IB/hfi1: fix a locking bug

mutex_trylock() returns zero on failure, not EBUSY. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
git-mirror · Sep 18, 2015 · 951842b · 951842b
1 parent 50b1972
commit 951842b
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/drivers/staging/rdma/hfi1/chip.c b/drivers/staging/rdma/hfi1/chip.c
@@ -2710,7 +2710,7 @@ int acquire_lcb_access(struct hfi1_devdata *dd, int sleep_ok)
 	if (sleep_ok) {
 		mutex_lock(&ppd->hls_lock);
 	} else {
-		while (mutex_trylock(&ppd->hls_lock) == EBUSY)
+		while (!mutex_trylock(&ppd->hls_lock))
 			udelay(1);
 	}
 
@@ -2758,7 +2758,7 @@ int release_lcb_access(struct hfi1_devdata *dd, int sleep_ok)
 	if (sleep_ok) {
 		mutex_lock(&dd->pport->hls_lock);
 	} else {
-		while (mutex_trylock(&dd->pport->hls_lock) == EBUSY)
+		while (!mutex_trylock(&dd->pport->hls_lock))
 			udelay(1);
 	}