[PATCH] selftests: ALSA: fix warnings in 'test-pcmtest-driver'

[Javier Carrasco <javier.carrasco.cruz@gmail.com>]

Defining the 'len' variable inside the 'patten_buf' as unsigned
makes it more consistent with its actual meaning and the rest of the
size variables in the test. Moreover, this removes an implicit
conversion in the fscanf function call.

Additionally, remove the unused variable 'it' from the reset_ioctl test.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
---
Defining the 'len' variable inside the 'patten_buf' as unsigned
makes it more consistent with its actual meaning and the rest of the
size variables in the test. Moreover, this removes an implicit
conversion in the fscanf function call.

Additionally, remove the unused variable 'it' from the reset_ioctl test.
---
 tools/testing/selftests/alsa/test-pcmtest-driver.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tools/testing/selftests/alsa/test-pcmtest-driver.c b/tools/testing/selftests/alsa/test-pcmtest-driver.c
index 357adc722cba..f0dae651e495 100644
--- a/tools/testing/selftests/alsa/test-pcmtest-driver.c
+++ b/tools/testing/selftests/alsa/test-pcmtest-driver.c
@@ -13,7 +13,7 @@
 
 struct pattern_buf {
 	char buf[1024];
-	int len;
+	unsigned int len;
 };
 
 struct pattern_buf patterns[CH_NUM];
@@ -313,7 +313,6 @@ TEST_F(pcmtest, ni_playback) {
  */
 TEST_F(pcmtest, reset_ioctl) {
 	snd_pcm_t *handle;
-	unsigned char *it;
 	int test_res;
 	struct pcmtest_test_params *params = &self->params;
 

---
base-commit: 0bb80ecc33a8fb5a682236443c1e740d5c917d1d
change-id: 20230916-topic-pcmtest_warnings-ed074edee338

Best regards,
-- 
Javier Carrasco <javier.carrasco.cruz@gmail.com>