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Driver core fix for 4.5-rc2 

Here's a single driver core fix that resolves an issue a lot of users
 have been hitting for a while now.  It's been tested a lot and has been
 in linux-next successfully for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fix from Greg KH:
 "Here's a single driver core fix that resolves an issue a lot of users
  have been hitting for a while now.  It's been tested a lot and has
  been in linux-next successfully for a while"

* tag 'driver-core-4.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  base/platform: Fix platform drivers with no probe callback
steinar/wifi_calib_4_9_kernel
Linus Torvalds 2016-01-31 16:55:04 -08:00
parent 510ae0c994 25cad69f21
commit f3ca903fbb
1 changed files with 9 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/base/platform.c
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@ -558,10 +558,15 @@ static int platform_drv_probe(struct device *_dev)
return ret;
ret = dev_pm_domain_attach(_dev, true);
if (ret != -EPROBE_DEFER && drv->probe) {
ret = drv->probe(dev);
if (ret)
dev_pm_domain_detach(_dev, true);
if (ret != -EPROBE_DEFER) {
if (drv->probe) {
ret = drv->probe(dev);
if (ret)
dev_pm_domain_detach(_dev, true);
} else {
/* don't fail if just dev_pm_domain_attach failed */
ret = 0;
}
}
if (drv->prevent_deferred_probe && ret == -EPROBE_DEFER) {