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Commit 7bcf5c0e authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

[PATCH] PCI: move pci core to use add_hotplug_env_var() 



This fixes a bug in the environment variables for all PCI device hotplug calls.

Thanks to Kay Sievers for pointing out the problem.

Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 2fd9d74b

drivers/pci/hotplug.c

+21 −32
Original line number Diff line number Diff line
@@ -20,46 +20,35 @@ int pci_hotplug (struct device *dev, char **envp, int num_envp, 


	scratch = buffer;



	/* stuff we want to pass to /sbin/hotplug */

	envp[i++] = scratch;

	length += scnprintf (scratch, buffer_size - length, "PCI_CLASS=%04X",

			    pdev->class);

	if ((buffer_size - length <= 0) || (i >= num_envp))



	if (add_hotplug_env_var(envp, num_envp, &i,

				buffer, buffer_size, &length,

				"PCI_CLASS=%04X", pdev->class))

		return -ENOMEM;

	++length;

	scratch += length;



	envp[i++] = scratch;

	length += scnprintf (scratch, buffer_size - length, "PCI_ID=%04X:%04X",

			    pdev->vendor, pdev->device);

	if ((buffer_size - length <= 0) || (i >= num_envp))

	if (add_hotplug_env_var(envp, num_envp, &i,

				buffer, buffer_size, &length,

				"PCI_ID=%04X:%04X", pdev->vendor, pdev->device))

		return -ENOMEM;

	++length;

	scratch += length;



	envp[i++] = scratch;

	length += scnprintf (scratch, buffer_size - length,

	if (add_hotplug_env_var(envp, num_envp, &i,

				buffer, buffer_size, &length,

				"PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,

			    pdev->subsystem_device);

	if ((buffer_size - length <= 0) || (i >= num_envp))

				pdev->subsystem_device))

		return -ENOMEM;

	++length;

	scratch += length;



	envp[i++] = scratch;

	length += scnprintf (scratch, buffer_size - length, "PCI_SLOT_NAME=%s",

			    pci_name(pdev));

	if ((buffer_size - length <= 0) || (i >= num_envp))

	if (add_hotplug_env_var(envp, num_envp, &i,

				buffer, buffer_size, &length,

				"PCI_SLOT_NAME=%s", pci_name(pdev)))

		return -ENOMEM;



	envp[i++] = scratch;

	length += scnprintf (scratch, buffer_size - length,

	if (add_hotplug_env_var(envp, num_envp, &i,

				buffer, buffer_size, &length,

				"MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x",

				pdev->vendor, pdev->device,

				pdev->subsystem_vendor, pdev->subsystem_device,

				(u8)(pdev->class >> 16), (u8)(pdev->class >> 8),

			    (u8)(pdev->class));

	if ((buffer_size - length <= 0) || (i >= num_envp))

				(u8)(pdev->class)))

		return -ENOMEM;



	envp[i] = NULL;