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authorKay Sievers <kay.sievers@vrfy.org>2007-08-14 17:15:12 +0400
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-13 01:51:01 +0400
commit7eff2e7a8b65c25920207324e56611150eb1cd9a (patch)
tree02a0eeba9d25d996233e30c18f258dfae0ae2139 /drivers/pci/hotplug.c
parent8380770c842faef3001e44662953d64ad9a93663 (diff)
downloadlinux-7eff2e7a8b65c25920207324e56611150eb1cd9a.tar.xz
Driver core: change add_uevent_var to use a struct
This changes the uevent buffer functions to use a struct instead of a long list of parameters. It does no longer require the caller to do the proper buffer termination and size accounting, which is currently wrong in some places. It fixes a known bug where parts of the uevent environment are overwritten because of wrong index calculations. Many thanks to Mathieu Desnoyers for finding bugs and improving the error handling. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/hotplug.c')
-rw-r--r--drivers/pci/hotplug.c28
1 files changed, 6 insertions, 22 deletions
diff --git a/drivers/pci/hotplug.c b/drivers/pci/hotplug.c
index 1c97e7dd130b..2b5352a7dffc 100644
--- a/drivers/pci/hotplug.c
+++ b/drivers/pci/hotplug.c
@@ -3,12 +3,9 @@
#include <linux/module.h>
#include "pci.h"
-int pci_uevent(struct device *dev, char **envp, int num_envp,
- char *buffer, int buffer_size)
+int pci_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct pci_dev *pdev;
- int i = 0;
- int length = 0;
if (!dev)
return -ENODEV;
@@ -17,37 +14,24 @@ int pci_uevent(struct device *dev, char **envp, int num_envp,
if (!pdev)
return -ENODEV;
- if (add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PCI_CLASS=%04X", pdev->class))
+ if (add_uevent_var(env, "PCI_CLASS=%04X", pdev->class))
return -ENOMEM;
- if (add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PCI_ID=%04X:%04X", pdev->vendor, pdev->device))
+ if (add_uevent_var(env, "PCI_ID=%04X:%04X", pdev->vendor, pdev->device))
return -ENOMEM;
- if (add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
+ if (add_uevent_var(env, "PCI_SUBSYS_ID=%04X:%04X", pdev->subsystem_vendor,
pdev->subsystem_device))
return -ENOMEM;
- if (add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PCI_SLOT_NAME=%s", pci_name(pdev)))
+ if (add_uevent_var(env, "PCI_SLOT_NAME=%s", pci_name(pdev)))
return -ENOMEM;
- if (add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "MODALIAS=pci:v%08Xd%08Xsv%08Xsd%08Xbc%02Xsc%02Xi%02x",
+ if (add_uevent_var(env, "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)))
return -ENOMEM;
-
- envp[i] = NULL;
-
return 0;
}