From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7FB273594E; Tue, 12 Aug 2025 19:15:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755026121; cv=none; b=XTUeNM329ftYlJqeHn4uc9DzwbzHApx3H2bQ7vv80pE5d0C+DR18OxLB7CnCnQSYLXmlOT3ehLNzQj2kr8rO8yDFy1hHsAq56iv2y03LurJht9X3FNPSuQ7ttjcu2ezvq9KT7ZAURH/Mcg6/pjbyYeSm5tg/f1BGgCNN1Wu2rhs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755026121; c=relaxed/simple; bh=jXqk3HjL8RbfDTwateh/ZrabXEJI9UKDktbHiJJbz/Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=J5xDpQaefGy9Ndj8GddNBDXFi76xrteaZSmECJQByMJlB1n+mtzNPH04CkLtL5h8DQxFVyeAKnPf7UO1M3SFKGOYnslLwFzK70ZDDZmP/rKmqlpSzv8LAa6oXbSDoeNivNtRaaXFvXTSpbS97mosmwP0OQ9Rznx07OUATJH2qB4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=dayQKtRF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="dayQKtRF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E2204C4CEF0; Tue, 12 Aug 2025 19:15:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755026121; bh=jXqk3HjL8RbfDTwateh/ZrabXEJI9UKDktbHiJJbz/Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dayQKtRFXGBCL2x432pjKFunPxMKt3n3Xw3IVNJcgw2miqN5sLn8p2BJAzU1Sjr28 uue2PMpoZwDYzF2UDsYVl9WC1qdPRWzTpw8dTsl6CQo/EMwcX6irvQ7WJ1CWsrRKMW Bg2GrUceM6enn4wD2A6m0SUNUOGdHfWwLKI4nQn8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jerome Brunet , Manivannan Sadhasivam , Frank Li , Sasha Levin Subject: [PATCH 6.15 242/480] PCI: endpoint: pci-epf-vntb: Return -ENOENT if pci_epc_get_next_free_bar() fails Date: Tue, 12 Aug 2025 19:47:30 +0200 Message-ID: <20250812174407.437029320@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250812174357.281828096@linuxfoundation.org> References: <20250812174357.281828096@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jerome Brunet [ 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 [mani: changed err code to -ENOENT] Signed-off-by: Manivannan Sadhasivam Reviewed-by: Frank Li Link: https://patch.msgid.link/20250603-pci-vntb-bar-mapping-v2-1-fc685a22ad28@baylibre.com Signed-off-by: Sasha Levin --- 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 874cb097b093..3cddfdd04029 100644 --- a/drivers/pci/endpoint/functions/pci-epf-vntb.c +++ b/drivers/pci/endpoint/functions/pci-epf-vntb.c @@ -700,7 +700,7 @@ 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; } -- 2.39.5