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iio: test : check null return of kunit_kmalloc in iio_rescale_test_scale

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kunit_kmalloc may fail, return value might be NULL and will cause
NULL pointer dereference.Add KUNIT_ASSERT_NOT_ERR_OR_NULL fix it.

Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Fixes: 8e74a48d17 ("iio: test: add basic tests for the iio-rescale driver")
Link: https://patch.msgid.link/ecd56a85e54a96c2f0313c114075a21a76071ea2.1730259869.git.xiaopei01@kylinos.cn
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Pei Xiao
2024-10-30 11:48:54 +08:00
committed by Jonathan Cameron
parent 4be339af33
commit aaa90d0751
1 changed files with 4 additions and 0 deletions
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drivers/iio/test/iio-test-rescale.c
+4
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@@ -652,6 +652,8 @@ static void iio_rescale_test_scale(struct kunit *test)
int rel_ppm;
int ret;
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buff);
rescale.numerator = t->numerator;
rescale.denominator = t->denominator;
rescale.offset = t->offset;
@@ -681,6 +683,8 @@ static void iio_rescale_test_offset(struct kunit *test)
int values[2];
int ret;
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buff_off);
rescale.numerator = t->numerator;
rescale.denominator = t->denominator;
rescale.offset = t->offset;