kernel/linux.git/drivers/iio, branch v6.18.34

iio: frequency: admv1013: fix NULL pointer dereference on str

2026-05-07T04:12:01+00:00

[ Upstream commit aac0a51b16700b403a55b67ba495de021db78763 ] When device_property_read_string() fails, str is left uninitialized but the code falls through to strcmp(str, ...), dereferencing a garbage pointer. Replace manual read/strcmp with device_property_match_property_string() and consolidate the SE mode enums into a single sequential enum, mapping to hardware register values via a switch consistent with other bitfields in the driver. Several cleanup patches have been applied to this driver recently so this will need a manual backport. Fixes: da35a7b526d9 ("iio: frequency: admv1013: add support for ADMV1013") Reviewed-by: Nuno Sá Signed-off-by: Antoniu Miclaus Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

iio: frequency: admv1013: add dev variable

2026-05-07T04:12:01+00:00

[ Upstream commit e61b5bb0e91390adee41eaddc0a1a7d55d5652b2 ] Introduce a local struct device pointer in functions that reference &spi->dev for device-managed resource calls and device property reads, improving code readability. Signed-off-by: Antoniu Miclaus Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron Stable-dep-of: aac0a51b1670 ("iio: frequency: admv1013: fix NULL pointer dereference on str") Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

iio: adc: ad7768-1: remove switch to one-shot mode

2026-05-07T04:11:43+00:00

commit 81fdc3127d013a552465c3bf9829afbed5184406 upstream. wideband low ripple FIR Filter is not available in one-shot mode. In order to make direct reads work for all filter options, remove the switch for one-shot mode and guarantee device is always in continuous conversion mode. Fixes: fb1d3b24ebf5 ("iio: adc: ad7768-1: add filter type and oversampling ratio attributes") Signed-off-by: Jonathan Santos Reviewed-by: David Lechner Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: adc: ad7768-1: fix one-shot mode data acquisition

2026-05-07T04:11:43+00:00

commit 8be19e233744961db6069da9c9ab63eb085a0447 upstream. According to the datasheet, one-shot mode requires a SYNC_IN pulse to trigger a new sample conversion. In the current implementation, No sync pulse was sent after switching to one-shot mode and reinit_completion() was called before mode switching, creating a race condition where spurious interrupts during mode change could trigger completion prematurely. Fix by sending a sync pulse after configuring one-shot mode and reinit_completion() to ensure it only waits for the actual conversion completion. Fixes: a5f8c7da3dbe ("iio: adc: Add AD7768-1 ADC basic support") Signed-off-by: Jonathan Santos Reviewed-by: David Lechner Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: adc: ti-ads7950: use iio_push_to_buffers_with_ts_unaligned()

2026-05-07T04:11:42+00:00

commit 7806c060cceb2d6895efbb6cff2f2f17cf1ec5de upstream. Use iio_push_to_buffers_with_ts_unaligned() to avoid unaligned access when writing the timestamp in the rx_buf. The previous implementation would have been fine on architectures that support 4-byte alignment of 64-bit integers but could cause issues on architectures that require 8-byte alignment. Fixes: 902c4b2446d4 ("iio: adc: New driver for TI ADS7950 chips") Signed-off-by: David Lechner Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: gyro: mpu3050: Fix out-of-sequence free_irq()

2026-04-11T12:26:41+00:00

commit d14116f6529fa085b1a1b1f224dc9604e4d2a29c upstream. The triggered buffer is initialized before the IRQ is requested. The removal path currently calls iio_triggered_buffer_cleanup() before free_irq(). This violates the expected LIFO. Place free_irq() in the correct location relative to iio_triggered_buffer_cleanup(). Fixes: 3904b28efb2c7 ("iio: gyro: Add driver for the MPU-3050 gyroscope") Suggested-by: Jonathan Cameron Reviewed-by: Linus Walleij Signed-off-by: Ethan Tidmore Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: gyro: mpu3050: Move iio_device_register() to correct location

2026-04-11T12:26:41+00:00

commit 4c05799449108fb0e0a6bd30e65fffc71e60db4d upstream. iio_device_register() should be at the end of the probe function to prevent race conditions. Place iio_device_register() at the end of the probe function and place iio_device_unregister() accordingly. Fixes: 3904b28efb2c7 ("iio: gyro: Add driver for the MPU-3050 gyroscope") Suggested-by: Jonathan Cameron Reviewed-by: Linus Walleij Signed-off-by: Ethan Tidmore Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: gyro: mpu3050: Fix irq resource leak

2026-04-11T12:26:41+00:00

commit 4216db1043a3be72ef9c2b7b9f393d7fa72496e6 upstream. The interrupt handler is setup but only a few lines down if iio_trigger_register() fails the function returns without properly releasing the handler. Add cleanup goto to resolve resource leak. Detected by Smatch: drivers/iio/gyro/mpu3050-core.c:1128 mpu3050_trigger_probe() warn: 'irq' from request_threaded_irq() not released on lines: 1124. Fixes: 3904b28efb2c7 ("iio: gyro: Add driver for the MPU-3050 gyroscope") Reviewed-by: Linus Walleij Signed-off-by: Ethan Tidmore Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: gyro: mpu3050: Fix incorrect free_irq() variable

2026-04-11T12:26:41+00:00

commit edb11a1aef4011a4b7b22cc3c3396c6fe371f4a6 upstream. The handler for the IRQ part of this driver is mpu3050->trig but, in the teardown free_irq() is called with handler mpu3050. Use correct IRQ handler when calling free_irq(). Fixes: 3904b28efb2c7 ("iio: gyro: Add driver for the MPU-3050 gyroscope") Reviewed-by: Linus Walleij Signed-off-by: Ethan Tidmore Reviewed-by: Andy Shevchenko Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman

iio: imu: st_lsm6dsx: Set FIFO ODR for accelerometer and gyroscope only

2026-04-11T12:26:41+00:00

commit 630748afa7030b272b7bee5df857e7bcf132ed51 upstream. The st_lsm6dsx_set_fifo_odr() function, which is called when enabling and disabling the hardware FIFO, checks the contents of the hw->settings->batch array at index sensor->id, and then sets the current ODR value in sensor registers that depend on whether the register address is set in the above array element. This logic is valid for internal sensors only, i.e. the accelerometer and gyroscope; however, since commit c91c1c844ebd ("iio: imu: st_lsm6dsx: add i2c embedded controller support"), this function is called also when configuring the hardware FIFO for external sensors (i.e. sensors accessed through the sensor hub functionality), which can result in unrelated device registers being written. Add a check to the beginning of st_lsm6dsx_set_fifo_odr() so that it does not touch any registers unless it is called for internal sensors. Fixes: c91c1c844ebd ("iio: imu: st_lsm6dsx: add i2c embedded controller support") Signed-off-by: Francesco Lavra Cc: Signed-off-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman