staging: most: cdev: simplify list iteration
This patch uses a less confusing list traversing structure to either return an item of the list that meets the prerequisites or NULL otherwise. Signed-off-by: Christian Gromm <christian.gromm@microchip.com> Link: https://lore.kernel.org/r/1592815695-19305-7-git-send-email-christian.gromm@microchip.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -66,19 +66,16 @@ static struct comp_channel *get_channel(struct most_interface *iface, int id)
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{
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{
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struct comp_channel *c, *tmp;
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struct comp_channel *c, *tmp;
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unsigned long flags;
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unsigned long flags;
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int found_channel = 0;
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spin_lock_irqsave(&ch_list_lock, flags);
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spin_lock_irqsave(&ch_list_lock, flags);
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list_for_each_entry_safe(c, tmp, &channel_list, list) {
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list_for_each_entry_safe(c, tmp, &channel_list, list) {
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if ((c->iface == iface) && (c->channel_id == id)) {
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if ((c->iface == iface) && (c->channel_id == id)) {
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found_channel = 1;
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spin_unlock_irqrestore(&ch_list_lock, flags);
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break;
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return c;
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}
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}
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}
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}
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spin_unlock_irqrestore(&ch_list_lock, flags);
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spin_unlock_irqrestore(&ch_list_lock, flags);
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if (!found_channel)
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return NULL;
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return NULL;
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return c;
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}
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}
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static void stop_channel(struct comp_channel *c)
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static void stop_channel(struct comp_channel *c)
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