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gallium/aux/util/u_debug_stack.c: Silence -Wunused-result warning

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asprintf is decorated with the attrbute "warn_unused_result", and if the
function call fails, the pointer "temp" will be undefined, but since it is
used later it should contain some usable value.
Test return value of asprintf and assign some save value to "temp" if
the call failed.

Signed-off-by: Gert Wollny <gw.fossdev@gmail.com>
Reviewed-by: Brian Paul <brianp@vmware.com> (v1)
This commit is contained in:
Gert Wollny 2017-11-16 16:09:36 +01:00 • committed by Brian Paul
parent 9b80c03870
commit 373c263e2c
1 changed files with 2 additions and 2 deletions
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4
src/gallium/auxiliary/util/u_debug_stack.c
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@ -90,8 +90,8 @@ symbol_name_cached(unw_cursor_t *cursor, unw_proc_info_t *pip)
procname[1] = 0;
}
asprintf(&name, "%s%s", procname, ret == -UNW_ENOMEM ? "..." : "");
if (asprintf(&name, "%s%s", procname, ret == -UNW_ENOMEM ? "..." : "") == -1)
name = "??";
util_hash_table_set(symbols_hash, addr, (void*)name);
}
mtx_unlock(&symbols_mutex);