diff options
author | Jean Delvare <jdelvare@suse.de> | 2014-02-25 09:43:13 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-03-06 21:30:13 -0800 |
commit | f7caf9429406422de57e1b65284f47d8e5cbf7ae (patch) | |
tree | 3a3140e4bf2ae3246aee75aed4564d0d339c6c21 /drivers/ata | |
parent | 31ccf35d556f2018744e9d5dd2b172872cec0818 (diff) |
i7300_edac: Fix device reference count
commit 75135da0d68419ef8a925f4c1d5f63d8046e314d upstream.
pci_get_device() decrements the reference count of "from" (last
argument) so when we break off the loop successfully we have only one
device reference - and we don't know which device we have. If we want
a reference to each device, we must take them explicitly and let
the pci_get_device() walk complete to avoid duplicate references.
This is serious, as over-putting device references will cause
the device to eventually disappear. Without this fix, the kernel
crashes after a few insmod/rmmod cycles.
Tested on an Intel S7000FC4UR system with a 7300 chipset.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Link: http://lkml.kernel.org/r/20140224111656.09bbb7ed@endymion.delvare
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/ata')
0 files changed, 0 insertions, 0 deletions