This is a note to let you know that I've just added the patch titled
platform/x86: int3472: Check for adev == NULL
to the 6.1-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:
platform-x86-int3472-check-for-adev-null.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 624885ed5c6042d944e7579554608abc9b349525
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Mon Dec 9 23:05:19 2024 +0100
platform/x86: int3472: Check for adev == NULL
[ Upstream commit cd2fd6eab480dfc247b737cf7a3d6b009c4d0f1c ]
Not all devices have an ACPI companion fwnode, so adev might be NULL. This
can e.g. (theoretically) happen when a user manually binds one of
the int3472 drivers to another i2c/platform device through sysfs.
Add a check for adev not being set and return -ENODEV in that case to
avoid a possible NULL pointer deref in skl_int3472_get_acpi_buffer().
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20241209220522.25288-1-hdegoede@xxxxxxxxxx
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c
index c42c3faa2c32d..0f16436e5804b 100644
--- a/drivers/platform/x86/intel/int3472/discrete.c
+++ b/drivers/platform/x86/intel/int3472/discrete.c
@@ -359,6 +359,9 @@ static int skl_int3472_discrete_probe(struct platform_device *pdev)
struct int3472_cldb cldb;
int ret;
+ if (!adev)
+ return -ENODEV;
+
ret = skl_int3472_fill_cldb(adev, &cldb);
if (ret) {
dev_err(&pdev->dev, "Couldn't fill CLDB structure\n");
diff --git a/drivers/platform/x86/intel/int3472/tps68470.c b/drivers/platform/x86/intel/int3472/tps68470.c
index 5b8d1a9620a5d..82fb2fbc1000f 100644
--- a/drivers/platform/x86/intel/int3472/tps68470.c
+++ b/drivers/platform/x86/intel/int3472/tps68470.c
@@ -152,6 +152,9 @@ static int skl_int3472_tps68470_probe(struct i2c_client *client)
int ret;
int i;
+ if (!adev)
+ return -ENODEV;
+
n_consumers = skl_int3472_fill_clk_pdata(&client->dev, &clk_pdata);
if (n_consumers < 0)
return n_consumers;
