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media: m5mols: Check function pointer in m5mols_sensor_power

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[ Upstream commit 52438c4463 ]

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: bc125106f8 ("[media] Add support for M-5MOLS 8 Mega Pixel camera ISP")
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tom Rix
2020-07-19 17:34:47 +02:00
committed by Greg Kroah-Hartman
parent d81bfffb3c
commit c1c2f8bb57
1 changed files with 2 additions and 1 deletions
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3
drivers/media/i2c/m5mols/m5mols_core.c
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@@ -768,7 +768,8 @@ 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;
}