5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jerome Brunet jbrunet@baylibre.com
[ Upstream commit 7ea488cce73263231662e426639dd3e836537068 ]
According the function documentation of epf_ntb_init_epc_bar(), the function should return an error code on error. However, it returns -1 when no BAR is available i.e., when pci_epc_get_next_free_bar() fails.
Return -ENOENT instead.
Fixes: e35f56bb0330 ("PCI: endpoint: Support NTB transfer between RC and EP") Signed-off-by: Jerome Brunet jbrunet@baylibre.com [mani: changed err code to -ENOENT] Signed-off-by: Manivannan Sadhasivam mani@kernel.org Reviewed-by: Frank Li Frank.Li@nxp.com Link: https://patch.msgid.link/20250603-pci-vntb-bar-mapping-v2-1-fc685a22ad28@bay... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/pci/endpoint/functions/pci-epf-vntb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/endpoint/functions/pci-epf-vntb.c b/drivers/pci/endpoint/functions/pci-epf-vntb.c index fb926b300c95..5cc0d2014ed8 100644 --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c @@ -686,7 +686,7 @@ static int epf_ntb_init_epc_bar(struct epf_ntb *ntb) barno = pci_epc_get_next_free_bar(epc_features, barno); if (barno < 0) { dev_err(dev, "Fail to get NTB function BAR\n"); - return barno; + return -ENOENT; } ntb->epf_ntb_bar[bar] = barno; }