Dont touch fs_struct in drivers
The sound drivers and the pnpbios core test for current->root != NULL. This test seems to be unnecessary since we always have rootfs mounted before initializing the drivers. Signed-off-by: Jan Blunck <jblunck@suse.de> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Jaroslav Kysela <perex@suse.cz> Acked-by: Takashi Iwai <tiwai@suse.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -105,8 +105,6 @@ static int pnp_dock_event(int dock, struct pnp_docking_station_info *info)
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char *argv[3], **envp, *buf, *scratch;
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int i = 0, value;
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if (!current->fs->root)
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return -EAGAIN;
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if (!(envp = kcalloc(20, sizeof(char *), GFP_KERNEL)))
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return -ENOMEM;
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if (!(buf = kzalloc(256, GFP_KERNEL))) {
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@ -149,13 +149,13 @@ struct snd_seq_client *snd_seq_client_use_ptr(int clientid)
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}
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spin_unlock_irqrestore(&clients_lock, flags);
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#ifdef CONFIG_KMOD
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if (!in_interrupt() && current->fs->root) {
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if (!in_interrupt()) {
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static char client_requested[SNDRV_SEQ_GLOBAL_CLIENTS];
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static char card_requested[SNDRV_CARDS];
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if (clientid < SNDRV_SEQ_GLOBAL_CLIENTS) {
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int idx;
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if (! client_requested[clientid] && current->fs->root) {
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if (!client_requested[clientid]) {
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client_requested[clientid] = 1;
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for (idx = 0; idx < 15; idx++) {
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if (seq_client_load[idx] < 0)
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@ -149,9 +149,6 @@ void snd_seq_device_load_drivers(void)
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if (snd_seq_in_init)
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return;
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if (! current->fs->root)
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return;
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mutex_lock(&ops_mutex);
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list_for_each_entry(ops, &opslist, list) {
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if (! (ops->driver & DRIVER_LOADED) &&
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@ -71,8 +71,6 @@ static DEFINE_MUTEX(sound_mutex);
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*/
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void snd_request_card(int card)
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{
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if (! current->fs->root)
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return;
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if (snd_card_locked(card))
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return;
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if (card < 0 || card >= cards_limit)
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@ -86,8 +84,6 @@ static void snd_request_other(int minor)
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{
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char *str;
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if (! current->fs->root)
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return;
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switch (minor) {
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case SNDRV_MINOR_SEQUENCER: str = "snd-seq"; break;
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case SNDRV_MINOR_TIMER: str = "snd-timer"; break;
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@ -150,8 +150,6 @@ static struct snd_timer *snd_timer_find(struct snd_timer_id *tid)
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static void snd_timer_request(struct snd_timer_id *tid)
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{
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if (! current->fs->root)
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return;
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switch (tid->dev_class) {
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case SNDRV_TIMER_CLASS_GLOBAL:
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if (tid->device < timer_limit)
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@ -250,9 +250,8 @@ int __init snd_pmac_daca_init(struct snd_pmac *chip)
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struct pmac_daca *mix;
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#ifdef CONFIG_KMOD
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if (current->fs->root)
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request_module("i2c-powermac");
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#endif /* CONFIG_KMOD */
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request_module("i2c-powermac");
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#endif /* CONFIG_KMOD */
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mix = kzalloc(sizeof(*mix), GFP_KERNEL);
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if (! mix)
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@ -1351,9 +1351,8 @@ int __init snd_pmac_tumbler_init(struct snd_pmac *chip)
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char *chipname;
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#ifdef CONFIG_KMOD
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if (current->fs->root)
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request_module("i2c-powermac");
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#endif /* CONFIG_KMOD */
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request_module("i2c-powermac");
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#endif /* CONFIG_KMOD */
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mix = kzalloc(sizeof(*mix), GFP_KERNEL);
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if (! mix)
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