Messages in this thread | | | Subject | Re: [PATCH] tracing: initialize variable in create_dyn_event() | From | Frank Rowand <> | Date | Thu, 14 Mar 2019 14:05:02 -0700 |
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Hi Steve,
Ping.
-Frank
On 1/24/19 6:17 PM, frowand.list@gmail.com wrote: > From: Frank Rowand <frank.rowand@sony.com> > > Fix compile warning in create_dyn_event(): 'ret' may be used uninitialized > in this function [-Wuninitialized]. > > Fixes: 5448d44c3855 ("tracing: Add unified dynamic event framework") > > Signed-off-by: Frank Rowand <frank.rowand@sony.com> > --- > > Compile and boot tested only. Please verify the initialization value > of zero is correct. > > There is also a sparse warning you might want to check into (when > ARCH=arm, so 32 bit): > > include/uapi/linux/perf_event.h:147:56: warning: cast truncates bits from constant value (8000000000000000 becomes 0) > > > kernel/trace/trace_dynevent.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/kernel/trace/trace_dynevent.c b/kernel/trace/trace_dynevent.c > index dd1f43588d70..4f633476c307 100644 > --- a/kernel/trace/trace_dynevent.c > +++ b/kernel/trace/trace_dynevent.c > @@ -74,7 +74,7 @@ int dyn_event_release(int argc, char **argv, struct dyn_event_operations *type) > static int create_dyn_event(int argc, char **argv) > { > struct dyn_event_operations *ops; > - int ret; > + int ret = 0; > > if (argv[0][0] == '-' || argv[0][0] == '!') > return dyn_event_release(argc, argv, NULL); >
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