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

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 77cd62e808 ("fsldma: allow
Freescale Elo DMA driver to be compiled as a module")

Fixes: d3f620b2c4 ("fsldma: simplify IRQ probing and handling")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/20201212160614.92576-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Christophe JAILLET 2020-12-12 17:06:14 +01:00 committed by Vinod Koul
parent cbc0ad004c
commit b202d4e825
1 changed files with 5 additions and 0 deletions
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5
drivers/dma/fsldma.c
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@ -1214,6 +1214,7 @@ static int fsldma_of_probe(struct platform_device *op)
{
struct fsldma_device *fdev;
struct device_node *child;
unsigned int i;
int err;
fdev = kzalloc(sizeof(*fdev), GFP_KERNEL);
@ -1292,6 +1293,10 @@ static int fsldma_of_probe(struct platform_device *op)
return 0;
out_free_fdev:
for (i = 0; i < FSL_DMA_MAX_CHANS_PER_DEVICE; i++) {
if (fdev->chan[i])
fsl_dma_chan_remove(fdev->chan[i]);
}
irq_dispose_mapping(fdev->irq);
iounmap(fdev->regs);
out_free: