diff options
| author | Jiasheng Jiang <jiasheng@iscas.ac.cn> | 2021-12-28 04:40:26 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-12-29 13:45:46 +0100 |
| commit | 3ecb46755eb85456b459a1a9f952c52986bce8ec (patch) | |
| tree | f4dc5eb9ce2f9207ee69d4c9a3162181b110c24b /sound | |
| parent | ASoC: mediatek: use of_device_get_match_data() (diff) | |
| download | linux-3ecb46755eb85456b459a1a9f952c52986bce8ec.tar.xz linux-3ecb46755eb85456b459a1a9f952c52986bce8ec.zip | |
ASoC: samsung: idma: Check of ioremap return value
Because of the potential failure of the ioremap(), the buf->area could
be NULL.
Therefore, we need to check it and return -ENOMEM in order to transfer
the error.
Fixes: f09aecd50f39 ("ASoC: SAMSUNG: Add I2S0 internal dma driver")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20211228034026.1659385-1-jiasheng@iscas.ac.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/samsung/idma.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/soc/samsung/idma.c b/sound/soc/samsung/idma.c index 66bcc2f97544..c3f1b054e238 100644 --- a/sound/soc/samsung/idma.c +++ b/sound/soc/samsung/idma.c @@ -360,6 +360,8 @@ static int preallocate_idma_buffer(struct snd_pcm *pcm, int stream) buf->addr = idma.lp_tx_addr; buf->bytes = idma_hardware.buffer_bytes_max; buf->area = (unsigned char * __force)ioremap(buf->addr, buf->bytes); + if (!buf->area) + return -ENOMEM; return 0; } |