30 lines
1.1 KiB
Diff
30 lines
1.1 KiB
Diff
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From 4c6bade4cf80d77decc5ea89fbaadff8b008f5e9 Mon Sep 17 00:00:00 2001
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From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
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Date: Mon, 25 Nov 2013 12:35:28 -0300
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Subject: [PATCH 155/203] mtd: nand: pxa3xx: Use info->use_dma to release DMA
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resources
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After the driver allocates all DMA resources, it sets "info->use_dma".
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Therefore, we need to check that variable to decide which resources
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needs to be freed, instead of the global use_dma variable.
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Without this change, when the device probe fails, the driver will try
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to release unallocated DMA resources, with nasty results.
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Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
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---
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drivers/mtd/nand/pxa3xx_nand.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/mtd/nand/pxa3xx_nand.c
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+++ b/drivers/mtd/nand/pxa3xx_nand.c
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@@ -1288,7 +1288,7 @@ static int pxa3xx_nand_init_buff(struct
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static void pxa3xx_nand_free_buff(struct pxa3xx_nand_info *info)
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{
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struct platform_device *pdev = info->pdev;
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- if (use_dma) {
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+ if (info->use_dma) {
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pxa_free_dma(info->data_dma_ch);
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dma_free_coherent(&pdev->dev, info->buf_size,
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info->data_buff, info->data_buff_phys);
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