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| author |   Viresh Kumar <viresh.kumar@linaro.org> | 2015-08-17 19:20:20 +0530 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-08-28 15:43:24 +0200 |
| commit | 68fa9f0ab1b61cfc7deee699da8b5b5cb12f7a58 (patch) | |
| tree | b44792cf7ae63e97a58ed953f7fe5bc28ef88dfc /drivers/base | |
| parent | PM / OPP: Free resources and properly return error on failure (diff) | |
| download | linux-dev-68fa9f0ab1b61cfc7deee699da8b5b5cb12f7a58.tar.xz linux-dev-68fa9f0ab1b61cfc7deee699da8b5b5cb12f7a58.zip | |
PM / OPP: Fix static checker warning (broken 64bit big endian systems)
Dan Carpenter reported (generated with static checker):
drivers/base/power/opp.c:949 _opp_add_static_v2()
warn: passing casted pointer '&new_opp->clock_latency_ns' to
'of_property_read_u32()' 64 vs 32.
This code will break on 64 bit, big endian machines.
Fix this by reading the value in a u32 type variable first and then
assigning it to the unsigned long variable.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Suggested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/opp.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c index 4d6c4576f7ae..803d8b7ced89 100644 --- a/drivers/base/power/opp.c +++ b/drivers/base/power/opp.c @@ -918,6 +918,7 @@ static int _opp_add_static_v2(struct device *dev, struct device_node *np) struct device_opp *dev_opp; struct dev_pm_opp *new_opp; u64 rate; + u32 val; int ret; /* Hold our list modification lock here */ @@ -946,14 +947,16 @@ static int _opp_add_static_v2(struct device *dev, struct device_node *np) new_opp->np = np; new_opp->dynamic = false; new_opp->available = true; - of_property_read_u32(np, "clock-latency-ns", - (u32 *)&new_opp->clock_latency_ns); + + if (!of_property_read_u32(np, "clock-latency-ns", &val)) + new_opp->clock_latency_ns = val; ret = opp_get_microvolt(new_opp, dev); if (ret) goto free_opp; - of_property_read_u32(np, "opp-microamp", (u32 *)&new_opp->u_amp); + if (!of_property_read_u32(new_opp->np, "opp-microamp", &val)) + new_opp->u_amp = val; ret = _opp_add(dev, new_opp, dev_opp); if (ret) |