This is a note to let you know that I've just added the patch titled dmaengine: fsldma: Fix a resource leak in the remove function to the 5.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: dmaengine-fsldma-fix-a-resource-leak-in-the-remove-f.patch and it can be found in the queue-5.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit b7d9fbb7a4df4adc382c800073df4d5c1f0dc5f0 Author: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx> Date: Sat Dec 12 17:05:16 2020 +0100 dmaengine: fsldma: Fix a resource leak in the remove function [ 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 <christophe.jaillet@xxxxxxxxxx> Link: https://lore.kernel.org/r/20201212160516.92515-1-christophe.jaillet@xxxxxxxxxx Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c index ad72b3f42ffa0..996f1d7623d69 100644 --- a/drivers/dma/fsldma.c +++ b/drivers/dma/fsldma.c @@ -1314,6 +1314,7 @@ static int fsldma_of_remove(struct platform_device *op) if (fdev->chan[i]) fsl_dma_chan_remove(fdev->chan[i]); } + irq_dispose_mapping(fdev->irq); iounmap(fdev->regs); kfree(fdev);