Thomas FourierandGreg Kroah-Hartman 5ea2a10be7 nui: Fix dma_mapping_error() check ...

[ Upstream commit 561aa0e22b ]

dma_map_XXX() functions return values DMA_MAPPING_ERROR as error values
which is often ~0.  The error value should be tested with
dma_mapping_error().

This patch creates a new function in niu_ops to test if the mapping
failed.  The test is fixed in niu_rbr_add_page(), added in
niu_start_xmit() and the successfully mapped pages are unmaped upon error.

Fixes: ec2deec1f3 ("niu: Fix to check for dma mapping errors.")
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-07-10 16:03:12 +02:00

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cassini.c

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cassini.h

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Kconfig

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ldmvsw.c

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Makefile

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niu.c

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niu.h

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sunbmac.c

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sunbmac.h

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sungem.c

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sungem.h

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sunhme.c

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sunhme.h

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sunqe.c

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sunqe.h

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sunvnet_common.c

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sunvnet_common.h

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sunvnet.c

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