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firmware loader: use small timeout for cache device firmware 

Because device_cache_fw_images only cache the firmware which has been
loaded sucessfully at leat once, using a small loading timeout should
be reasonable.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Ming Lei 2012-08-04 12:01:28 +08:00 committed by Greg Kroah-Hartman
parent 37276a51f8
commit ffe53f6f38
1 changed files with 14 additions and 0 deletions
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14
drivers/base/firmware_class.c
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@ -1146,10 +1146,22 @@ static void device_cache_fw_images(void)
{
struct firmware_cache *fwc = &fw_cache;
struct device *dev;
int old_timeout;
DEFINE_WAIT(wait);
pr_debug("%s\n", __func__);
/*
* use small loading timeout for caching devices' firmware
* because all these firmware images have been loaded
* successfully at lease once, also system is ready for
* completing firmware loading now. The maximum size of
* firmware in current distributions is about 2M bytes,
* so 10 secs should be enough.
*/
old_timeout = loading_timeout;
loading_timeout = 10;
device_pm_lock();
list_for_each_entry(dev, &dpm_list, power.entry)
dev_cache_fw_image(dev);
@ -1171,6 +1183,8 @@ static void device_cache_fw_images(void)
}
spin_unlock(&fwc->name_lock);
finish_wait(&fwc->wait_queue, &wait);
loading_timeout = old_timeout;
}
/**