Merge v6.18.51linux-rolling-lts

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

4 files changed, 37 insertions, 19 deletions

diff --git a/drivers/spi/spi-bcm63xx-hsspi.c b/drivers/spi/spi-bcm63xx-hsspi.c
index 18261cbd413b..b8bf8b5be2cf 100644
--- a/drivers/spi/spi-bcm63xx-hsspi.c
+++ b/drivers/spi/spi-bcm63xx-hsspi.c
@@ -921,7 +921,13 @@ static int bcm63xx_hsspi_resume(struct device *dev)
 		}
 	}
 
-	spi_controller_resume(host);
+	ret = spi_controller_resume(host);
+	if (ret) {
+		if (bs->pll_clk)
+			clk_disable_unprepare(bs->pll_clk);
+		clk_disable_unprepare(bs->clk);
+		return ret;
+	}
 
 	return 0;
 }
diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index cf7eefd39839..8d152e906daa 100644
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -661,7 +661,11 @@ static int bcm63xx_spi_resume(struct device *dev)
 	if (ret)
 		return ret;
 
-	spi_controller_resume(host);
+	ret = spi_controller_resume(host);
+	if (ret) {
+		clk_disable_unprepare(bs->clk);
+		return ret;
+	}
 
 	return 0;
 }
diff --git a/drivers/spi/spi-bcmbca-hsspi.c b/drivers/spi/spi-bcmbca-hsspi.c
index f0f0e6b29668..a1ff33f6dc09 100644
--- a/drivers/spi/spi-bcmbca-hsspi.c
+++ b/drivers/spi/spi-bcmbca-hsspi.c
@@ -612,7 +612,13 @@ static int bcmbca_hsspi_resume(struct device *dev)
 		}
 	}
 
-	spi_controller_resume(host);
+	ret = spi_controller_resume(host);
+	if (ret) {
+		if (bs->pll_clk)
+			clk_disable_unprepare(bs->pll_clk);
+		clk_disable_unprepare(bs->clk);
+		return ret;
+	}
 
 	return 0;
 }
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 6ea9ac2931cd..6900514e7329 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1216,6 +1216,8 @@ void spi_unmap_buf(struct spi_controller *ctlr, struct device *dev,
 	spi_unmap_buf_attrs(ctlr, dev, sgt, dir, 0);
 }
 
+static int __spi_unmap_msg(struct spi_controller *ctlr, struct spi_message *msg);
+
 static int __spi_map_msg(struct spi_controller *ctlr, struct spi_message *msg)
 {
 	struct device *tx_dev, *rx_dev;
@@ -1239,7 +1241,13 @@ static int __spi_map_msg(struct spi_controller *ctlr, struct spi_message *msg)
 	else
 		rx_dev = ctlr->dev.parent;
 
-	ret = -ENOMSG;
+	/*
+	 * Store the devices before mapping so partial failures can be unwound
+	 * with the device that created each mapping.
+	 */
+	ctlr->cur_tx_dma_dev = tx_dev;
+	ctlr->cur_rx_dma_dev = rx_dev;
+
 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
 		/* The sync is done before each transfer. */
 		unsigned long attrs = DMA_ATTR_SKIP_CPU_SYNC;
@@ -1252,8 +1260,8 @@ static int __spi_map_msg(struct spi_controller *ctlr, struct spi_message *msg)
 						(void *)xfer->tx_buf,
 						xfer->len, DMA_TO_DEVICE,
 						attrs);
-			if (ret != 0)
-				return ret;
+			if (ret)
+				goto unwind;
 
 			xfer->tx_sg_mapped = true;
 		}
@@ -1262,25 +1270,19 @@ static int __spi_map_msg(struct spi_controller *ctlr, struct spi_message *msg)
 			ret = spi_map_buf_attrs(ctlr, rx_dev, &xfer->rx_sg,
 						xfer->rx_buf, xfer->len,
 						DMA_FROM_DEVICE, attrs);
-			if (ret != 0) {
-				spi_unmap_buf_attrs(ctlr, tx_dev,
-						&xfer->tx_sg, DMA_TO_DEVICE,
-						attrs);
-
-				return ret;
-			}
+			if (ret)
+				goto unwind;
 
 			xfer->rx_sg_mapped = true;
 		}
 	}
-	/* No transfer has been mapped, bail out with success */
-	if (ret)
-		return 0;
-
-	ctlr->cur_rx_dma_dev = rx_dev;
-	ctlr->cur_tx_dma_dev = tx_dev;
 
 	return 0;
+
+unwind:
+	__spi_unmap_msg(ctlr, msg);
+
+	return ret;
 }
 
 static int __spi_unmap_msg(struct spi_controller *ctlr, struct spi_message *msg)