PCI: xilinx-xdma: Fix error code in xilinx_pl_dma_pcie_init_irq_domain()

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[ Upstream commit 2324be17b5 ]

Currently, if the function irq_domain_add_linear() fails to allocate
a new IRQ domain and returns NULL, we would then still return a success
from the xilinx_pl_dma_pcie_init_irq_domain() function regardless, as
the PTR_ERR(NULL) would return a value of zero.  This is not a desirable
outcome.

Thus, fix the incorrect error code and return the -ENOMEM error code if
the irq_domain_add_linear() fails to allocate a new IRQ domain.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20231030072757.3236546-1-harshit.m.mogalapalli@oracle.com
Fixes: 8d786149d7 ("PCI: xilinx-xdma: Add Xilinx XDMA Root Port driver")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Harshit Mogalapalli 2023-10-30 00:27:57 -07:00 • committed by Greg Kroah-Hartman

parent 6bb073bcba

commit fb1961baa0

1 changed files with 1 additions and 1 deletions

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drivers/pci/controller/pcie-xilinx-dma-pl.c

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