lkml.org 
[lkml]   [2021]   [Mar]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4.4 36/93] dmaengine: fsldma: Fix a resource leak in the remove function
Date
From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ 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@wanadoo.fr>
Link: https://lore.kernel.org/r/20201212160516.92515-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/dma/fsldma.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 2209f75fdf05b..1a637104cc08e 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -1436,6 +1436,7 @@ 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);
--
2.27.0


\
 
 \ /
  Last update: 2021-03-01 17:37    [W:0.314 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site