diff options
| author | Kay Sievers <kay.sievers@vrfy.org> | 2007-08-14 15:15:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-10-12 23:51:01 +0200 |
| commit | 7eff2e7a8b65c25920207324e56611150eb1cd9a (patch) | |
| tree | 02a0eeba9d25d996233e30c18f258dfae0ae2139 /drivers/pcmcia/ds.c | |
| parent | Driver core: make sysfs uevent-attributes static (diff) | |
| download | linux-7eff2e7a8b65c25920207324e56611150eb1cd9a.tar.xz linux-7eff2e7a8b65c25920207324e56611150eb1cd9a.zip | |
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/pcmcia/ds.c')
| -rw-r--r-- | drivers/pcmcia/ds.c | 26 |
1 files changed, 6 insertions, 20 deletions
diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index a99607142fc8..55baa1f0fcbb 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -1064,11 +1064,10 @@ static int pcmcia_bus_match(struct device * dev, struct device_driver * drv) { #ifdef CONFIG_HOTPLUG -static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { struct pcmcia_device *p_dev; - int i, length = 0; + int i; u32 hash[4] = { 0, 0, 0, 0}; if (!dev) @@ -1083,23 +1082,13 @@ static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, hash[i] = crc32(0, p_dev->prod_id[i], strlen(p_dev->prod_id[i])); } - i = 0; - - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "SOCKET_NO=%u", - p_dev->socket->sock)) + if (add_uevent_var(env, "SOCKET_NO=%u", p_dev->socket->sock)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "DEVICE_NO=%02X", - p_dev->device_no)) + if (add_uevent_var(env, "DEVICE_NO=%02X", p_dev->device_no)) return -ENOMEM; - if (add_uevent_var(envp, num_envp, &i, - buffer, buffer_size, &length, - "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" + if (add_uevent_var(env, "MODALIAS=pcmcia:m%04Xc%04Xf%02Xfn%02Xpfn%02X" "pa%08Xpb%08Xpc%08Xpd%08X", p_dev->has_manf_id ? p_dev->manf_id : 0, p_dev->has_card_id ? p_dev->card_id : 0, @@ -1112,15 +1101,12 @@ static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, hash[3])) return -ENOMEM; - envp[i] = NULL; - return 0; } #else -static int pcmcia_bus_uevent(struct device *dev, char **envp, int num_envp, - char *buffer, int buffer_size) +static int pcmcia_bus_uevent(struct device *dev, struct kobj_uevent_env *env) { return -ENODEV; } |