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ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()'

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[ Upstream commit b6052c3c7a78f5e2b9756c92ef77c0b56435f107 ]

If an error occurs after a successful 'of_iomap()' call, it must be undone
by a corresponding 'iounmap()' call, as already done in the remove
function.

While at it, remove the useless initialization of 'ret' at the beginning of
the function.

Fixes: 4bd8597dc36c ("ASoC: mediatek: add btcvsd driver")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/0c2ba562c3364e61bfbd5b3013a99dfa0d9045d7.1622989685.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe JAILLET 2021-06-06 16:31:09 +02:00 committed by Greg Kroah-Hartman
parent 6fee286da8
commit 7ba04367b3
1 changed files with 18 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
sound/soc/mediatek/common/mtk-btcvsd.c
View File

@ -1302,7 +1302,7 @@ static const struct snd_soc_component_driver mtk_btcvsd_snd_platform = {
static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
{
int ret = 0;
int ret;
int irq_id;
u32 offset[5] = {0, 0, 0, 0, 0};
struct mtk_btcvsd_snd *btcvsd;
@ -1358,7 +1358,8 @@ static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
btcvsd->bt_sram_bank2_base = of_iomap(dev->of_node, 1);
if (!btcvsd->bt_sram_bank2_base) {
dev_err(dev, "iomap bt_sram_bank2_base fail\n");
return -EIO;
ret = -EIO;
goto unmap_pkv_err;
}
btcvsd->infra = syscon_regmap_lookup_by_phandle(dev->of_node,
@ -1366,7 +1367,8 @@ static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
if (IS_ERR(btcvsd->infra)) {
dev_err(dev, "cannot find infra controller: %ld\n",
PTR_ERR(btcvsd->infra));
return PTR_ERR(btcvsd->infra);
ret = PTR_ERR(btcvsd->infra);
goto unmap_bank2_err;
}
/* get offset */
@ -1375,7 +1377,7 @@ static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
ARRAY_SIZE(offset));
if (ret) {
dev_warn(dev, "%s(), get offset fail, ret %d\n", __func__, ret);
return ret;
goto unmap_bank2_err;
}
btcvsd->infra_misc_offset = offset[0];
btcvsd->conn_bt_cvsd_mask = offset[1];
@ -1394,8 +1396,18 @@ static int mtk_btcvsd_snd_probe(struct platform_device *pdev)
mtk_btcvsd_snd_set_state(btcvsd, btcvsd->tx, BT_SCO_STATE_IDLE);
mtk_btcvsd_snd_set_state(btcvsd, btcvsd->rx, BT_SCO_STATE_IDLE);
return devm_snd_soc_register_component(dev, &mtk_btcvsd_snd_platform,
NULL, 0);
ret = devm_snd_soc_register_component(dev, &mtk_btcvsd_snd_platform,
NULL, 0);
if (ret)
goto unmap_bank2_err;
return 0;
unmap_bank2_err:
iounmap(btcvsd->bt_sram_bank2_base);
unmap_pkv_err:
iounmap(btcvsd->bt_pkv_base);
return ret;
}
static int mtk_btcvsd_snd_remove(struct platform_device *pdev)