OrgACRN
/
acrn-kernel
mirror of https://github.com/projectacrn/acrn-kernel.git
1
0
Fork 0
Code Issues Releases Wiki Activity

mfd: stmpe: Only disable the regulators if they are enabled 

[ Upstream commit 104d32bd81 ]

In stmpe_probe(), if some regulator_enable() calls fail, probing continues
and there is only a dev_warn().

So, if stmpe_probe() is called the regulator may not be enabled. It is
cleaner to test it before calling regulator_disable() in the remove
function.

Fixes: 9c9e321455 ("mfd: stmpe: add optional regulators")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/8de3aaf297931d655b9ad6aed548f4de8b85425a.1686998575.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Lee Jones <lee@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Christophe JAILLET 2023-06-17 12:43:16 +02:00 committed by Greg Kroah-Hartman
parent f7d56de13c
commit 055ea8efdf
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/mfd/stmpe.c
View File

@ -1485,9 +1485,9 @@ int stmpe_probe(struct stmpe_client_info *ci, enum stmpe_partnum partnum)
void stmpe_remove(struct stmpe *stmpe)
{
if (!IS_ERR(stmpe->vio))
if (!IS_ERR(stmpe->vio) && regulator_is_enabled(stmpe->vio))
regulator_disable(stmpe->vio);
if (!IS_ERR(stmpe->vcc))
if (!IS_ERR(stmpe->vcc) && regulator_is_enabled(stmpe->vcc))
regulator_disable(stmpe->vcc);
__stmpe_disable(stmpe, STMPE_BLOCK_ADC);