The drv->sram_reg pointer could be set to ERR_PTR(-EPROBE_DEFER) which
would lead to a error pointer dereference. Use IS_ERR_OR_NULL() to check
that the pointer is valid.
Fixes: e09bd5757b52 ("PM / devfreq: mtk-cci: Handle sram regulator probe deferral")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/devfreq/mtk-cci-devfreq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/devfreq/mtk-cci-devfreq.c b/drivers/devfreq/mtk-cci-devfreq.c
index 22fe9e631f8a..5730076846e1 100644
--- a/drivers/devfreq/mtk-cci-devfreq.c
+++ b/drivers/devfreq/mtk-cci-devfreq.c
@@ -386,7 +386,8 @@ static int mtk_ccifreq_probe(struct platform_device *pdev)
out_free_resources:
if (regulator_is_enabled(drv->proc_reg))
regulator_disable(drv->proc_reg);
- if (drv->sram_reg && regulator_is_enabled(drv->sram_reg))
+ if (!IS_ERR_OR_NULL(drv->sram_reg) &&
+ regulator_is_enabled(drv->sram_reg))
regulator_disable(drv->sram_reg);
return ret;
--
2.47.2
