3.8-stable review patch. If anyone has any objections, please let us know.
------------------
From: "Russ Dill <Russ.Dill@xxxxxx>"
commit 6e45eb12fd1c741d556bf264ee98853b5f3104e5 upstream.
commit dd8004af: 'regulator: core: Log when a device causes a voltage
constraint fail', tried to print out some information about the
check consumer min/max uV fixup, however, it uses a garbage pointer
left over from list_for_each_entry leading to boot messages in the
form:
'[ 2.079890] <RANDOM ASCII>: Restricting voltage,
3735899821-4294967295uV'
Because it references regulator->dev, it could potentially read memory from
anywhere causing a panic.
This patch instead uses rdev and the updated min/max uV values.
Signed-off-by: Russ Dill <Russ.Dill@xxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jonghwan Choi <jhbird.choi@xxxxxxxxxxx>
---
drivers/regulator/core.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 2785843..5a0f54a 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -200,8 +200,8 @@ static int regulator_check_consumers(struct
regulator_dev *rdev,
}
if (*min_uV > *max_uV) {
- dev_err(regulator->dev, "Restricting voltage, %u-%uuV\n",
- regulator->min_uV, regulator->max_uV);
+ rdev_err(rdev, "Restricting voltage, %u-%uuV\n",
+ *min_uV, *max_uV);
return -EINVAL;
}
--
1.7.9.5
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