2019-11-20 15:36:03

by Alexander Shishkin

[permalink] [raw]
Subject: [GIT PULL 0/3] intel_th: Updates for v5.5

Hi Greg,

Here are some more updates I have for v5.5. These are 2 new PCI IDs and a
bug fix for something old. Stable CC on all of them. Signed tag below.
Individual patches follow. I made sure that there aren't merge conflicts
with other PCI ID patches in char-misc-next, so either way is good.

The following changes since commit 54ecb8f7028c5eb3d740bb82b0f1d90f2df63c5c:

Linux 5.4-rc1 (2019-09-30 10:35:40 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/ash/stm.git tags/intel_th-for-greg-20191120

for you to fetch changes up to 76a8b4a23ca875ef06401326b9d799f74f55d82a:

intel_th: pci: Add Tiger Lake CPU support (2019-11-20 14:53:05 +0200)

----------------------------------------------------------------
intel_th: Updates for v5.5

These are:
* a double free fix
* two new PCI IDs

----------------------------------------------------------------
Alexander Shishkin (3):
intel_th: Fix a double put_device() in error path
intel_th: pci: Add Ice Lake CPU support
intel_th: pci: Add Tiger Lake CPU support

drivers/hwtracing/intel_th/core.c | 8 ++------
drivers/hwtracing/intel_th/pci.c | 10 ++++++++++
2 files changed, 12 insertions(+), 6 deletions(-)

--
2.24.0



2019-11-20 16:56:53

by Alexander Shishkin

[permalink] [raw]
Subject: [GIT PULL 1/3] intel_th: Fix a double put_device() in error path

Commit a753bfcfdb1f ("intel_th: Make the switch allocate its subdevices")
factored out intel_th_subdevice_alloc() from intel_th_populate(), but got
the error path wrong, resulting in two instances of a double put_device()
on a freshly initialized, but not 'added' device.

Fix this by only doing one put_device() in the error path.

Signed-off-by: Alexander Shishkin <[email protected]>
Fixes: a753bfcfdb1f ("intel_th: Make the switch allocate its subdevices")
Reported-by: Wen Yang <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Cc: [email protected] # v4.14+
---
drivers/hwtracing/intel_th/core.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index d5c1821b31c6..0dfd97bbde9e 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -649,10 +649,8 @@ intel_th_subdevice_alloc(struct intel_th *th,
}

err = intel_th_device_add_resources(thdev, res, subdev->nres);
- if (err) {
- put_device(&thdev->dev);
+ if (err)
goto fail_put_device;
- }

if (subdev->type == INTEL_TH_OUTPUT) {
if (subdev->mknode)
@@ -667,10 +665,8 @@ intel_th_subdevice_alloc(struct intel_th *th,
}

err = device_add(&thdev->dev);
- if (err) {
- put_device(&thdev->dev);
+ if (err)
goto fail_free_res;
- }

/* need switch driver to be loaded to enumerate the rest */
if (subdev->type == INTEL_TH_SWITCH && !req) {
--
2.24.0