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由 Geert Uytterhoeven 提交于
[ Upstream commit 508cacd7da6659ae7b7bdd0a335f675422277758 ] With gcc 7.3.0: gpio-mockup-chardev.c: In function ‘get_debugfs’: gpio-mockup-chardev.c:62:3: warning: ignoring return value of ‘asprintf’, declared with attribute warn_unused_result [-Wunused-result] asprintf(path, "%s/gpio", mnt_fs_get_target(fs)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Handle asprintf() failures to fix this. Signed-off-by: NGeert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: NShuah Khan <shuah@kernel.org> Signed-off-by: NSasha Levin <sashal@kernel.org> Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>6ef3d6d2