[patch] IB/hfi1: fix a locking bug

[Dan Carpenter]

mutex_trylock() returns zero on failure, not EBUSY.

Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>

diff --git a/drivers/staging/rdma/hfi1/chip.c b/drivers/staging/rdma/hfi1/chip.c
index 654eafe..aa58e59 100644
--- 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);
        }
 
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html