Patch "PCI: Fix minimum allocation address overwrite" has been added to the 4.3-stable tree

This is a note to let you know that I've just added the patch titled

PCI: Fix minimum allocation address overwrite

to the 4.3-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
pci-fix-minimum-allocation-address-overwrite.patch
and it can be found in the queue-4.3 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Christoph Biedl <[email protected]>
Date: Wed, 23 Dec 2015 16:51:57 +0100
Subject: PCI: Fix minimum allocation address overwrite

From: Christoph Biedl <[email protected]>

commit 3460baa620685c20f5ee19afb6d99d26150c382c upstream.

Commit 36e097a8a297 ("PCI: Split out bridge window override of minimum allocation address") claimed to do no functional changes but unfortunately
did: The "min" variable is altered. At least the AVM A1 PCMCIA adapter was no longer detected, breaking ISDN operation.

Use a local copy of "min" to restore the previous behaviour.

---
 drivers/pci/bus.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

@@ -140,6 +140,8 @@ static int pci_bus_alloc_from_region(str
 	type_mask |= IORESOURCE_TYPE_BITS;
 
 	pci_bus_for_each_resource(bus, r, i) {
+		resource_size_t min_used = min;
+
 		if (!r)
 			continue;
 

@@ -163,12 +165,12 @@ static int pci_bus_alloc_from_region(str
 		 * overrides "min".
 		 */
 		if (avail.start)
-			min = avail.start;
+			min_used = avail.start;
 
 		max = avail.end;
 
 		/* Ok, try it out.. */
-		ret = allocate_resource(r, res, size, min, max,
+		ret = allocate_resource(r, res, size, min_used, max,
 					align, alignf, alignf_data);
 		if (ret == 0)
 			return 0;

Patches currently in stable-queue which might be from [email protected] are

queue-4.3/pci-fix-minimum-allocation-address-overwrite.patch