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PCI: dwc: ep: Return -ENOMEM for allocation failures

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[ Upstream commit 8189aa56dbed0bfb46b7b30d4d231f57ab17b3f4 ]

If the bitmap or memory allocations fail, then dw_pcie_ep_init_registers()
will incorrectly return a success.

Return -ENOMEM instead.

Fixes: 869bc52534 ("PCI: dwc: ep: Fix DBI access failure for drivers requiring refclk from host")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Krzysztof Wilczyński <kw@linux.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/36dcb6fc-f292-4dd5-bd45-a8c6f9dc3df7@stanley.mountain
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter
2025-03-05 18:00:07 +03:00
committed by Greg Kroah-Hartman
parent 3453bcaf2c
commit b004cf517d
1 changed files with 1 additions and 0 deletions
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1
drivers/pci/controller/dwc/pcie-designware-ep.c
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@@ -755,6 +755,7 @@ int dw_pcie_ep_init_registers(struct dw_pcie_ep *ep)
if (ret)
return ret;
ret = -ENOMEM;
if (!ep->ib_window_map) {
ep->ib_window_map = devm_bitmap_zalloc(dev, pci->num_ib_windows,
GFP_KERNEL);