Messages in this thread Patch in this message | | | From | Russ Dill <> | Subject | [PATCH] regulator: Fix memory garbage dev_err printout. | Date | Thu, 14 Feb 2013 04:46:33 -0800 |
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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@ti.com> --- 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; } -- 1.8.1.2
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