[PATCH] iio:common: Added check memory allocation failed

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Signed-off-by: Denis Ciocca <denis.ciocca@xxxxxx>
---
 drivers/iio/common/st_sensors/st_sensors_buffer.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c
index 7389785..71a2c5f 100644
--- a/drivers/iio/common/st_sensors/st_sensors_buffer.c
+++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c
@@ -57,6 +57,11 @@ int st_sensors_get_buffer_element(struct iio_dev *indio_dev, u8 *buf)
 			u8 *rx_array;
 			rx_array = kmalloc(byte_for_channel * num_data_channels,
 					   GFP_KERNEL);
+			if (!rx_array) {
+				len = -ENOMEM;
+				goto st_sensors_free_memory;
+			}
+
 			len = sdata->tf->read_multiple_byte(&sdata->tb,
 				sdata->dev, addr[0],
 				byte_for_channel * num_data_channels,
-- 
1.7.9.5

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