[patch 17/45] USB: use GFP_NOIO in reset path

Greg KH
2008-02-07T20:59:18Z

[-- Attachment #1: usb-use-gfp_noio-in-reset-path.patch --]
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2.6.24-stable review patch. If anyone has any objections, please let us know.

------------------
From: Oliver Neukum <oliver@neukum.org>

this function will run in the context of the scsi error handler thread.
It must use GFP_NOIO instead of GFP_KERNEL to avoid a possible
deadlock.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
drivers/usb/core/hub.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2946,7 +2946,7 @@ static int config_descriptors_changed(st
if (len < le16_to_cpu(udev->config[index].desc.wTotalLength))
len = le16_to_cpu(udev->config[index].desc.wTotalLength);
}
- buf = kmalloc (len, GFP_KERNEL);
+ buf = kmalloc(len, GFP_NOIO);
if (buf == NULL) {
dev_err(&udev->dev, "no mem to re-read configs after reset\n");
/* assume the worst */

--