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authorKay Sievers <kay.sievers@vrfy.org>2007-08-14 15:15:12 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2007-10-12 14:51:01 -0700
commit7eff2e7a8b65c25920207324e56611150eb1cd9a (patch)
tree02a0eeba9d25d996233e30c18f258dfae0ae2139 /drivers/ieee1394/nodemgr.c
parent8380770c842faef3001e44662953d64ad9a93663 (diff)
downloadlinux-7eff2e7a8b65c25920207324e56611150eb1cd9a.tar.bz2
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/ieee1394/nodemgr.c')
-rw-r--r--drivers/ieee1394/nodemgr.c17
1 files changed, 4 insertions, 13 deletions
diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c
index 2ffd53461db6..1939fee616ec 100644
--- a/drivers/ieee1394/nodemgr.c
+++ b/drivers/ieee1394/nodemgr.c
@@ -153,8 +153,7 @@ struct host_info {
};
static int nodemgr_bus_match(struct device * dev, struct device_driver * drv);
-static int nodemgr_uevent(struct device *dev, char **envp, int num_envp,
- char *buffer, int buffer_size);
+static int nodemgr_uevent(struct device *dev, struct kobj_uevent_env *env);
static void nodemgr_resume_ne(struct node_entry *ne);
static void nodemgr_remove_ne(struct node_entry *ne);
static struct node_entry *find_entry_by_guid(u64 guid);
@@ -1160,12 +1159,9 @@ static void nodemgr_process_root_directory(struct host_info *hi, struct node_ent
#ifdef CONFIG_HOTPLUG
-static int nodemgr_uevent(struct device *dev, char **envp, int num_envp,
- char *buffer, int buffer_size)
+static int nodemgr_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct unit_directory *ud;
- int i = 0;
- int length = 0;
int retval = 0;
/* ieee1394:venNmoNspNverN */
char buf[8 + 1 + 3 + 8 + 2 + 8 + 2 + 8 + 3 + 8 + 1];
@@ -1180,9 +1176,7 @@ static int nodemgr_uevent(struct device *dev, char **envp, int num_envp,
#define PUT_ENVP(fmt,val) \
do { \
- retval = add_uevent_var(envp, num_envp, &i, \
- buffer, buffer_size, &length, \
- fmt, val); \
+ retval = add_uevent_var(env, fmt, val); \
if (retval) \
return retval; \
} while (0)
@@ -1201,15 +1195,12 @@ do { \
#undef PUT_ENVP
- envp[i] = NULL;
-
return 0;
}
#else
-static int nodemgr_uevent(struct device *dev, char **envp, int num_envp,
- char *buffer, int buffer_size)
+static int nodemgr_uevent(struct device *dev, struct kobj_uevent_env *env)
{
return -ENODEV;
}