[PATCH v3 1/2] iio: gyro: mpu3050-i2c: fix pm_runtime error handling
From: Antoniu Miclaus
Date: Mon Feb 09 2026 - 07:03:40 EST
pm_runtime_get_sync() does not check its return value, and the
function always returns success. This allows I2C mux operations to
proceed even when the device fails to resume.
Use pm_runtime_resume_and_get() and propagate its return value to
properly handle resume failures.
Fixes: 3904b28efb2c ("iio: gyro: Add driver for the MPU-3050 gyroscope")
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@xxxxxxxxxx>
---
Changes in v3:
- Rename patch to focus on fix rather than API change
- Reword commit message
- Add Fixes: tag
drivers/iio/gyro/mpu3050-i2c.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/iio/gyro/mpu3050-i2c.c b/drivers/iio/gyro/mpu3050-i2c.c
index 092878f2c886..6549b22e643d 100644
--- a/drivers/iio/gyro/mpu3050-i2c.c
+++ b/drivers/iio/gyro/mpu3050-i2c.c
@@ -19,8 +19,7 @@ static int mpu3050_i2c_bypass_select(struct i2c_mux_core *mux, u32 chan_id)
struct mpu3050 *mpu3050 = i2c_mux_priv(mux);
/* Just power up the device, that is all that is needed */
- pm_runtime_get_sync(mpu3050->dev);
- return 0;
+ return pm_runtime_resume_and_get(mpu3050->dev);
}
static int mpu3050_i2c_bypass_deselect(struct i2c_mux_core *mux, u32 chan_id)
--
2.43.0