From: trix@redhat.com
To: kyungmin.park@samsung.com, riverful.kim@samsung.com,
mchehab@kernel.org, s.nawrocki@samsung.com
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
Tom Rix <trix@redhat.com>
Subject: [PATCH] media: m5mols: Check function pointer in m5mols_sensor_power
Date: Sun, 19 Jul 2020 08:34:47 -0700 [thread overview]
Message-ID: <20200719153447.4380-1-trix@redhat.com> (raw)
From: Tom Rix <trix@redhat.com>
clang static analysis reports this error
m5mols_core.c:767:4: warning: Called function pointer
is null (null dereference) [core.CallAndMessage]
info->set_power(&client->dev, 0);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In other places, the set_power ptr is checked.
So add a check.
Fixes: bc125106f8af ("[media] Add support for M-5MOLS 8 Mega Pixel camera ISP")
Signed-off-by: Tom Rix <trix@redhat.com>
---
drivers/media/i2c/m5mols/m5mols_core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/media/i2c/m5mols/m5mols_core.c b/drivers/media/i2c/m5mols/m5mols_core.c
index de295114ca48..21666d705e37 100644
--- a/drivers/media/i2c/m5mols/m5mols_core.c
+++ b/drivers/media/i2c/m5mols/m5mols_core.c
@@ -764,7 +764,8 @@ static int m5mols_sensor_power(struct m5mols_info *info, bool enable)
ret = regulator_bulk_enable(ARRAY_SIZE(supplies), supplies);
if (ret) {
- info->set_power(&client->dev, 0);
+ if (info->set_power)
+ info->set_power(&client->dev, 0);
return ret;
}
--
2.18.1
reply other threads:[~2020-07-19 15:34 UTC|newest]
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