Merge branch 'i2c/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:

 - mostly driver updates. Bigger ones for mlxcpld and iproc. But most of
   them are all over the place.

 - removal of the efm32, sirf, u300, and zte zx bus drivers because of
   platform removal. So, we have a pleasant diffstat this time.

 - first set of cleanups in the I2C core as preparation to increase
   maximum length of SMBus transfers to 255 (as specified in the new
   standard). Better documentation of struct i2c_msg and its flags stand
   out here.

 - the testunit can now respond to SMBus block process calls which is
   the testcase when implementing the above new maximum length.

* 'i2c/for-5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (62 commits)
  i2c: remove redundant error print in stm32f7_i2c_probe
  i2c: testunit: add support for block process calls
  i2c: busses: Replace spin_lock_irqsave with spin_lock in hard IRQ
  dt-bindings: eeprom: at24: Document ROHM BR24G01
  i2c: i801: Add support for Intel Alder Lake PCH-P
  i2c: mv64xxx: Fix check for missing clock after adding RPM
  i2c: mux: mlxcpld: Add callback to notify mux creation completion
  i2c: mux: mlxcpld: Extend supported mux number
  i2c: mux: mlxcpld: Extend driver to support word address space devices
  i2c: mux: mlxcpld: Get rid of adapter numbers enforcement
  i2c: mux: mlxcpld: Prepare mux selection infrastructure for two-byte support
  i2c: mux: mlxcpld: Convert driver to platform driver
  i2c: imx: Synthesize end of transaction events without idle interrupts
  i2c: i2c-qcom-geni: Add shutdown callback for i2c
  i2c: mv64xxx: Add runtime PM support
  i2c: amd-mp2: Remove unused macro
  i2c: amd-mp2: convert to PCI logging functions
  i2c: mux: mlxcpld: Move header file out of x86 realm
  platform/x86: mlxcpld: Update module license
  i2c: mux: mlxcpld: Update module license
  ...

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 97eec8d8dbdc..844198cb4e31 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -3469,6 +3469,10 @@ EXPORT_SYMBOL_GPL(gpiod_add_lookup_table);
  */
 void gpiod_remove_lookup_table(struct gpiod_lookup_table *table)
 {
+	/* Nothing to remove */
+	if (!table)
+		return;
+
 	mutex_lock(&gpio_lookup_lock);
 
 	list_del(&table->list);