From acbe2febe71abb2360b008e9ab3ee5c44169f78c Mon Sep 17 00:00:00 2001 From: Oliver Neukum Date: Tue, 12 Jan 2010 12:32:50 +0100 Subject: USB: Don't use GFP_KERNEL while we cannot reset a storage device Memory allocations with GFP_KERNEL can cause IO to a storage device which can fail resulting in a need to reset the device. Therefore GFP_KERNEL cannot be safely used between usb_lock_device() and usb_unlock_device(). Replace by GFP_NOIO. Signed-off-by: Oliver Neukum Cc: stable Cc: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/devices.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/usb/core/devices.c') diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c index 96f11715cd26..355dffcc23b0 100644 --- a/drivers/usb/core/devices.c +++ b/drivers/usb/core/devices.c @@ -494,7 +494,7 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes, return 0; /* allocate 2^1 pages = 8K (on i386); * should be more than enough for one device */ - pages_start = (char *)__get_free_pages(GFP_KERNEL, 1); + pages_start = (char *)__get_free_pages(GFP_NOIO, 1); if (!pages_start) return -ENOMEM; -- cgit v1.2.3