kernel.git/drivers/dma/fsldma.c, branch linux-4.9.y

dmaengine: fsldma: Fix a resource leak in an error handling path of the probe function

2021-03-03T16:44:36Z

[ Upstream commit b202d4e82531a62a33a6b14d321dd2aad491578e ] In case of error, the previous 'fsl_dma_chan_probe()' calls must be undone by some 'fsl_dma_chan_remove()', as already done in the remove function. It was added in the remove function in commit 77cd62e8082b ("fsldma: allow Freescale Elo DMA driver to be compiled as a module") Fixes: d3f620b2c4fe ("fsldma: simplify IRQ probing and handling") Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/20201212160614.92576-1-christophe.jaillet@wanadoo.fr Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

dmaengine: fsldma: Fix a resource leak in the remove function

2021-03-03T16:44:36Z

[ Upstream commit cbc0ad004c03ad7971726a5db3ec84dba3dcb857 ] A 'irq_dispose_mapping()' call is missing in the remove function. Add it. This is needed to undo the 'irq_of_parse_and_map() call from the probe function and already part of the error handling path of the probe function. It was added in the probe function only in commit d3f620b2c4fe ("fsldma: simplify IRQ probing and handling") Fixes: 77cd62e8082b ("fsldma: allow Freescale Elo DMA driver to be compiled as a module") Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/20201212160516.92515-1-christophe.jaillet@wanadoo.fr Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

Merge branch 'topic/unmap_cleanup' into for-linus

2016-10-03T04:06:11Z

Merge branch 'topic/err_reporting' into for-linus

2016-10-03T03:47:33Z

Signed-off-by: Vinod Koul Conflicts: drivers/dma/cppi41.c

dmaengine: fsldma: Unmap region obtained by of_iomap

2016-09-30T17:55:14Z

Free memory mapping, if probe is not successful. Signed-off-by: Arvind Yadav Acked-by: Li Yang Signed-off-by: Vinod Koul

dmaengine: NO_IRQ removal from powerpc-only drivers

2016-09-14T13:27:38Z

We'd like to eventually remove NO_IRQ on powerpc, so remove usages of it from powerpc-only drivers. Signed-off-by: Michael Ellerman Signed-off-by: Vinod Koul

dmaengine: fsldma: move unmap to before callback

2016-08-08T02:41:43Z

Completion callback should happen after dma_descriptor_unmap() has happened. This allow the cache invalidate to happen and ensure that the data accessed by the upper layer is in memory that was from DMA rather than stale data. On some architecture this is done by the hardware, however we should make the code consistent to not cause confusion. Signed-off-by: Dave Jiang Acked-by: Li Yang Signed-off-by: Vinod Koul

dmaengine: fsldma: convert callback to helper function

2016-08-08T02:41:39Z

This is in preperation of moving to a callback that provides results to the callback for the transaction. The conversion will maintain current behavior and the driver must convert to new callback mechanism at a later time in order to receive results. Signed-off-by: Dave Jiang Reviewed-by: Lars-Peter Clausen Cc: Li Yang Signed-off-by: Vinod Koul

dmaengine: Remove site specific OOM error messages on kzalloc

2016-06-21T16:05:00Z

If kzalloc() fails it will issue it's own error message including a dump_stack(). So remove the site specific error messages. Signed-off-by: Peter Griffin Acked-by: Jon Hunter Acked-by: Linus Walleij Signed-off-by: Vinod Koul

dmaengine: fsldma: Use dma_pool_zalloc

2016-05-03T06:53:25Z

Dma_pool_zalloc combines dma_pool_alloc and memset 0. The semantic patch that makes this transformation is as follows: (http://coccinelle.lip6.fr/) // @@ expression d,e; statement S; @@ d = - dma_pool_alloc + dma_pool_zalloc (...); if (!d) S - memset(d, 0, sizeof(*d)); // Signed-off-by: Julia Lawall Acked-by: Li Yang Signed-off-by: Vinod Koul