Messages in this thread Patch in this message | | | From | Xiaoke Wang <> | Subject | [PATCH] iio: dummy: iio_simple_dummy: check the return value of kstrdup() | Date | Mon, 13 Dec 2021 17:18:21 +0800 |
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kstrdup() is also a memory allocation-related function, it return NULL when some memory errors happen. So it is better to check the return value of it so to catch the memory error in time.
Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com> --- drivers/iio/dummy/iio_simple_dummy.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/iio/dummy/iio_simple_dummy.c b/drivers/iio/dummy/iio_simple_dummy.c index c0b7ef9..a5e8071 100644 --- a/drivers/iio/dummy/iio_simple_dummy.c +++ b/drivers/iio/dummy/iio_simple_dummy.c @@ -616,6 +616,10 @@ static struct iio_sw_device *iio_dummy_probe(const char *name) * indio_dev->name = spi_get_device_id(spi)->name; */ indio_dev->name = kstrdup(name, GFP_KERNEL); + if (!indio_dev->name) { + ret = -ENOMEM; + goto error_free_device; + } /* Provide description of available channels */ indio_dev->channels = iio_dummy_channels; --
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