dmaengine: xilinx_dma: Fix uninitialized addr_width when "xlnx,addrwidth" property is missing

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[ Upstream commit c0732fe787 ]

When device tree lacks optional "xlnx,addrwidth" property, the addr_width
variable remained uninitialized with garbage values, causing incorrect
DMA mask configuration and subsequent probe failure. The fix ensures a
fallback to the default 32-bit address width when this property is missing.

Signed-off-by: Suraj Gupta <suraj.gupta2@amd.com>
Fixes: b72db4005f ("dmaengine: vdma: Add 64 bit addressing support to the driver")
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Reviewed-by: Folker Schwesinger <dev@folker-schwesinger.de>
Link: https://patch.msgid.link/20251021183006.3434495-1-suraj.gupta2@amd.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Suraj Gupta 2025-10-22 00:00:06 +05:30 • committed by Greg Kroah-Hartman

parent cb2c9c4bb1

commit 99dccb81cb

1 changed files with 5 additions and 2 deletions

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drivers/dma/xilinx/xilinx_dma.c

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