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tracing: Initialize val to zero in parse_entry of inject code 

gcc produces a variable may be uninitialized warning for "val" in
parse_entry(). This is really a false positive, but the code is subtle
enough to just initialize val to zero and it's not a fast path to worry
about it.

Marked for stable to remove the warning in the stable trees as well.

Cc: stable@vger.kernel.org
Fixes: 6c3edaf9fd ("tracing: Introduce trace event injection")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
alistair/sunxi64-5.5-dsi
Steven Rostedt (VMware) 2020-01-02 19:04:57 -05:00
parent fe6e096a5b
commit 02f4e01ce7
1 changed files with 1 additions and 1 deletions
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kernel/trace/trace_events_inject.c
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@ -195,7 +195,7 @@ static int parse_entry(char *str, struct trace_event_call *call, void **pentry)
unsigned long irq_flags;
void *entry = NULL;
int entry_size;
u64 val;
u64 val = 0;
int len;
entry = trace_alloc_entry(call, &entry_size);