perf genelf: Fix error code in jit_write_elf()

The error code is set to -1 at the beginning of jit_write_elf(), but it is
assigned by jit_add_eh_frame_info() in the middle, hence the following
error can only return the error code of jit_add_eh_frame_info(). Reset
the error code to the default value after being assigned by
jit_add_eh_frame_info().

Fixes: 086f9f3d7897d808 ("perf jit: Generate .eh_frame/.eh_frame_hdr in DSO")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stefano Sanfilippo <ssanfilippo@chromium.org>
Link: https://lore.kernel.org/r/20220922141438.22487-2-shangxiaojing@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/util/genelf.c b/tools/perf/util/genelf.c
index d81b545..fefc720 100644 (file)
--- a/tools/perf/util/genelf.c
+++ b/tools/perf/util/genelf.c
@@ -345,6 +345,7 @@ jit_write_elf(int fd, uint64_t load_addr, const char *sym,
                                               eh_frame_base_offset);
                if (retval)
                        goto error;
+               retval = -1;
        }
 
        /*