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[-next] spi: bcm2835: Fix error return code in bcm2835_dma_init()

Message ID 20200506125607.90952-1-weiyongjun1@huawei.com (mailing list archive)
State Accepted
Commit dd4441ab1fa1e2787a5f218f92d8ead1aa5ce6b5
Headers show
Series [-next] spi: bcm2835: Fix error return code in bcm2835_dma_init() | expand

Commit Message

Wei Yongjun May 6, 2020, 12:56 p.m. UTC 
Fix to return negative error code -ENOMEM from the dma mapping error
handling case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 drivers/spi/spi-bcm2835.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Mark Brown May 6, 2020, 2:55 p.m. UTC | #1 
On Wed, 6 May 2020 12:56:07 +0000, Wei Yongjun wrote:
> Fix to return negative error code -ENOMEM from the dma mapping error
> handling case instead of 0, as done elsewhere in this function.
> 
> Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
> ---
>  drivers/spi/spi-bcm2835.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-5.8

Thanks!

[1/1] spi: bcm2835: Fix error return code in bcm2835_dma_init()
      commit: dd4441ab1fa1e2787a5f218f92d8ead1aa5ce6b5

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

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Thanks,
Mark
diff mbox series

Patch

diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index 11c235879bb7..c4f4bd135279 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -940,6 +940,7 @@  static int bcm2835_dma_init(struct spi_controller *ctlr, struct device *dev,
 	if (dma_mapping_error(ctlr->dma_tx->device->dev, bs->fill_tx_addr)) {
 		dev_err(dev, "cannot map zero page - not using DMA mode\n");
 		bs->fill_tx_addr = 0;
+		ret = -ENOMEM;
 		goto err_release;
 	}
 
@@ -949,6 +950,7 @@  static int bcm2835_dma_init(struct spi_controller *ctlr, struct device *dev,
 						     DMA_MEM_TO_DEV, 0);
 	if (!bs->fill_tx_desc) {
 		dev_err(dev, "cannot prepare fill_tx_desc - not using DMA mode\n");
+		ret = -ENOMEM;
 		goto err_release;
 	}
 
@@ -979,6 +981,7 @@  static int bcm2835_dma_init(struct spi_controller *ctlr, struct device *dev,
 	if (dma_mapping_error(ctlr->dma_rx->device->dev, bs->clear_rx_addr)) {
 		dev_err(dev, "cannot map clear_rx_cs - not using DMA mode\n");
 		bs->clear_rx_addr = 0;
+		ret = -ENOMEM;
 		goto err_release;
 	}
 
@@ -989,6 +992,7 @@  static int bcm2835_dma_init(struct spi_controller *ctlr, struct device *dev,
 					   DMA_MEM_TO_DEV, 0);
 		if (!bs->clear_rx_desc[i]) {
 			dev_err(dev, "cannot prepare clear_rx_desc - not using DMA mode\n");
+			ret = -ENOMEM;
 			goto err_release;
 		}