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SubjectRe: [PATCH] arch/avr32: Fix build failure for avr32 caused by typo
On Fri, 25 Dec 2009 20:08:45 +0100
Peter Huewe <PeterHuewe@gmx.de> wrote:

> This patch fixes a build failure introduced by the patch
> atmel-mci: change use of dma slave interface by Nicolas Ferre
> by changing mci_dma_slave to the correct name of mci_dma_data
>
> This should make the avr32 tree build again.
>

Ah, great, I have not gotten around to test this yet. Thanks for the
patch. I've done some minor changes and also fixed the kzalloc/kfree
error handling. Please see the inlined patch below.

From c8d4b6c01b19044467867b24e218b8a59ed04291 Mon Sep 17 00:00:00 2001
From: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
Date: Mon, 28 Dec 2009 09:08:00 +0100
Subject: [PATCH] avr32: Fix build failure when using atmel-mci caused by typo

This patch fixes a build failure introduced by the patch atmel-mci: change use
of dma slave interface by Nicolas Ferre by changing mci_dma_slave to the
correct name of mci_dma_data.

It also will only free the struct mci_dma_data if it has been allocated.

This should make the avr32 tree build again.

References:
http://kisskb.ellerman.id.au/kisskb/buildresult/1893610/
http://git.kernel.org/?p=linux/kernel/git/sfr/linux-next.git;a=commitdiff;h=2635d1ba711560d521f6218c585a3e0401f566e1

Patch against Linus' tree.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
---
arch/avr32/mach-at32ap/at32ap700x.c | 13 +++++++------
1 files changed, 7 insertions(+), 6 deletions(-)
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 1aa1ea5..6e093c3 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -1325,7 +1325,7 @@ struct platform_device *__init
at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
{
struct platform_device *pdev;
- struct mci_dma_slave *slave;
+ struct mci_dma_data *slave;
u32 pioa_mask;
u32 piob_mask;

@@ -1344,7 +1344,7 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
ARRAY_SIZE(atmel_mci0_resource)))
goto fail;

- slave = kzalloc(sizeof(struct mci_dma_slave), GFP_KERNEL);
+ slave = kzalloc(sizeof(struct mci_dma_data), GFP_KERNEL);

slave->sdata.dma_dev = &dw_dmac0_device.dev;
slave->sdata.reg_width = DW_DMA_SLAVE_WIDTH_32BIT;
@@ -1357,7 +1357,7 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)

if (platform_device_add_data(pdev, data,
sizeof(struct mci_platform_data)))
- goto fail;
+ goto fail_free;

/* CLK line is common to both slots */
pioa_mask = 1 << 10;
@@ -1381,7 +1381,7 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
/* Slot is unused */
break;
default:
- goto fail;
+ goto fail_free;
}

select_peripheral(PIOA, pioa_mask, PERIPH_A, 0);
@@ -1408,7 +1408,7 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
break;
default:
if (!data->slot[0].bus_width)
- goto fail;
+ goto fail_free;

data->slot[1].bus_width = 0;
break;
@@ -1419,9 +1419,10 @@ at32_add_device_mci(unsigned int id, struct mci_platform_data *data)
platform_device_add(pdev);
return pdev;

+fail_free:
+ kfree(slave);
fail:
data->dma_slave = NULL;
- kfree(slave);
platform_device_put(pdev);
return NULL;
}
--
1.6.0.4
--
Best regards,
Hans-Christian Egtvedt


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