iio: adc: pac1934: Fix clamped value in pac1934_reg_snapshot

The local variable 'curr_energy' was never clamped to
PAC_193X_MIN_POWER_ACC or PAC_193X_MAX_POWER_ACC because the return
value of clamp() was not used. Fix this by assigning the clamped value
back to 'curr_energy'.

Cc: [e-mail]
Fixes: 0fb528c8255b ("iio: adc: adding support for PAC193x")
Signed-off-by: Thorsten Blum <[e-mail]>
Signed-off-by: Jonathan Cameron <[e-mail]>

drivers/iio/adc/pac1934.c

···
 			/* add the power_acc field */
 			curr_energy += inc;
 
-			clamp(curr_energy, PAC_193X_MIN_POWER_ACC, PAC_193X_MAX_POWER_ACC);
-
-			reg_data->energy_sec_acc[cnt] = curr_energy;
+			reg_data->energy_sec_acc[cnt] = clamp(curr_energy,
+							      PAC_193X_MIN_POWER_ACC,
+							      PAC_193X_MAX_POWER_ACC);
 		}
 
 		offset_reg_data_p += PAC1934_VPOWER_ACC_REG_LEN;