X-Git-Url: http://git.cascardo.eti.br/?a=blobdiff_plain;f=drivers%2Fspi%2Fspi.c;h=ac889df9b1f347c96fd52a28f1b87c339a24e6c0;hb=d0716dde375eb6bff332763bb2137302120d263d;hp=51ad42fad567913339ab8d9deaf531b779865a87;hpb=b067c9045af4791a5836042f743d12477131f7b5;p=cascardo%2Flinux.git

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 51ad42fad567..ac889df9b1f3 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -960,7 +960,7 @@ static int spi_transfer_one_message(struct spi_master *master,
 	struct spi_transfer *xfer;
 	bool keep_cs = false;
 	int ret = 0;
-	unsigned long ms = 1;
+	unsigned long long ms = 1;
 	struct spi_statistics *statm = &master->statistics;
 	struct spi_statistics *stats = &msg->spi->statistics;
 
@@ -991,9 +991,13 @@ static int spi_transfer_one_message(struct spi_master *master,
 
 			if (ret > 0) {
 				ret = 0;
-				ms = xfer->len * 8 * 1000 / xfer->speed_hz;
+				ms = 8LL * 1000LL * xfer->len;
+				do_div(ms, xfer->speed_hz);
 				ms += ms + 100; /* some tolerance */
 
+				if (ms > UINT_MAX)
+					ms = UINT_MAX;
+
 				ms = wait_for_completion_timeout(&master->xfer_completion,
 								 msecs_to_jiffies(ms));
 			}