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 985E1330B1E; Fri, 17 Oct 2025 15:53:19 +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=1760716399; cv=none; b=R+/N+Ia4JGHqbDkkIAJmOnxerqy0a/X/GCk32GhF/e41+fFM8XSaipesrg8A6vK0jqbYFLXRG7C+/DjypHU2ExeoCuF1qnxfJFClvUr4R6/db63lnvq750GhVh0rzQjc6klmcRoyrm/M26cpXswrUPjNt/jC2k8GnYVlAxBB9ag= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760716399; c=relaxed/simple; bh=HIDRVfzES7Wj2MgF+VxceUelMXuz3NFPXRPqfxwFaa8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=WPGYtghJGbnDkoLGEb1hQIZWTRc95t1xmplZ2q6dCyKRvscrdJvggG1efFFKoRVQ8PAZtoSSWAwTcu3/lZSSfQewqZPg1sErvxmm5rm+KIr7qxS/rZO7V1tai7ZQYJydIdSQCKq6utIbLjmw6Or/33QdJgCrY0ckiZhhq8eVg6g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=SOZe4nrW; 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="SOZe4nrW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25D5CC4CEE7; Fri, 17 Oct 2025 15:53:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1760716399; bh=HIDRVfzES7Wj2MgF+VxceUelMXuz3NFPXRPqfxwFaa8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SOZe4nrW53nvQF+XKwgcxqQQERhu0fuXjurqpApPZf9u8VIybWzgAsGoaLXBnqR9S 1zLgMoArGr6F+S5QGEy41iURKPVMzY1BJfp5tKgO2h9gKKRX4pU8lOsBQUTPNVH2Uh oi3PjZylPZI0MBzreYv9lC4HbpfbGr3tzLYYoAmA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Adam Xue , Manivannan Sadhasivam , Krishna Chaitanya Chundru Subject: [PATCH 5.15 176/276] bus: mhi: host: Do not use uninitialized dev pointer in mhi_init_irq_setup() Date: Fri, 17 Oct 2025 16:54:29 +0200 Message-ID: <20251017145148.900673208@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20251017145142.382145055@linuxfoundation.org> References: <20251017145142.382145055@linuxfoundation.org> User-Agent: quilt/0.69 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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Adam Xue commit d0856a6dff57f95cc5d2d74e50880f01697d0cc4 upstream. In mhi_init_irq_setup, the device pointer used for dev_err() was not initialized. Use the pointer from mhi_cntrl instead. Fixes: b0fc0167f254 ("bus: mhi: core: Allow shared IRQ for event rings") Fixes: 3000f85b8f47 ("bus: mhi: core: Add support for basic PM operations") Signed-off-by: Adam Xue [mani: reworded subject/description and CCed stable] Signed-off-by: Manivannan Sadhasivam Reviewed-by: Krishna Chaitanya Chundru Cc: stable@vger.kernel.org Link: https://patch.msgid.link/20250905174118.38512-1-zxue@semtech.com Signed-off-by: Greg Kroah-Hartman --- drivers/bus/mhi/host/init.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) --- a/drivers/bus/mhi/host/init.c +++ b/drivers/bus/mhi/host/init.c @@ -161,7 +161,6 @@ void mhi_deinit_free_irq(struct mhi_cont int mhi_init_irq_setup(struct mhi_controller *mhi_cntrl) { struct mhi_event *mhi_event = mhi_cntrl->mhi_event; - struct device *dev = &mhi_cntrl->mhi_dev->dev; unsigned long irq_flags = IRQF_SHARED | IRQF_NO_SUSPEND; int i, ret; @@ -182,7 +181,7 @@ int mhi_init_irq_setup(struct mhi_contro continue; if (mhi_event->irq >= mhi_cntrl->nr_irqs) { - dev_err(dev, "irq %d not available for event ring\n", + dev_err(mhi_cntrl->cntrl_dev, "irq %d not available for event ring\n", mhi_event->irq); ret = -EINVAL; goto error_request; @@ -193,7 +192,7 @@ int mhi_init_irq_setup(struct mhi_contro irq_flags, "mhi", mhi_event); if (ret) { - dev_err(dev, "Error requesting irq:%d for ev:%d\n", + dev_err(mhi_cntrl->cntrl_dev, "Error requesting irq:%d for ev:%d\n", mhi_cntrl->irq[mhi_event->irq], i); goto error_request; }