This is a note to let you know that I've just added the patch titled
spi: dw-pci: fix bug when regs left uninitialized
to the 3.16-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:
spi-dw-pci-fix-bug-when-regs-left-uninitialized.patch
and it can be found in the queue-3.16 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c9d5d6fe168fd45a4dfdd0116affe708789b4702 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Date: Wed, 27 Aug 2014 16:21:12 +0300
Subject: spi: dw-pci: fix bug when regs left uninitialized
From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
commit c9d5d6fe168fd45a4dfdd0116affe708789b4702 upstream.
The commit 04f421e7 "spi: dw: use managed resources" changes drivers to use
managed functions, but seems wasn't properly tested in PCI case. The regs field
of struct dw_spi left uninitialized. Thus, kernel crashes when tries to access
to the SPI controller registers. This patch fixes the issue.
Fixes: 04f421e7 (spi: dw: use managed resources)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/spi/spi-dw-pci.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/spi/spi-dw-pci.c
+++ b/drivers/spi/spi-dw-pci.c
@@ -62,6 +62,8 @@ static int spi_pci_probe(struct pci_dev
if (ret)
return ret;
+ dws->regs = pcim_iomap_table(pdev)[pci_bar];
+
dws->bus_num = 0;
dws->num_cs = 4;
dws->irq = pdev->irq;
Patches currently in stable-queue which might be from andriy.shevchenko@xxxxxxxxxxxxxxx are
queue-3.16/spi-dw-pci-fix-bug-when-regs-left-uninitialized.patch
queue-3.16/spi-dw-fix-kernel-crash-due-to-null-pointer-dereference.patch
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