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Commit e4c2515a authored by Xu Yilun's avatar Xu Yilun Committed by Greg Kroah-Hartman
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fpga: zynq_fpga: Fix the wrong usage of dma_map_sgtable()



commit 1ca61060de92a4320d73adfe5dc8d335653907ac upstream.

dma_map_sgtable() returns only 0 or the error code. Read sgt->nents to
get the number of mapped segments.

Fixes: 37e00703228a ("zynq_fpga: use sgtable-based scatterlist wrappers")
Reported-by: default avatarPavel Pisa <pisa@fel.cvut.cz>
Closes: https://lore.kernel.org/linux-fpga/202508041548.22955.pisa@fel.cvut.cz/


Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Reviewed-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: default avatarXu Yilun <yilun.xu@linux.intel.com>
Tested-by: default avatarPavel Pisa <pisa@fel.cvut.cz>
Link: https://lore.kernel.org/r/20250806070605.1920909-2-yilun.xu@linux.intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 3e3e50ce
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