From: Mikko Perttunen <mperttunen@xxxxxxxxxx> Some error paths in mrq_debug_read and bpmp_debug_show would overwrite the return error code with a subsequent call to mrq_debug_close. Change the code to only change the error code if there was no prior error. Signed-off-by: Mikko Perttunen <mperttunen@xxxxxxxxxx> --- drivers/firmware/tegra/bpmp-debugfs.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/firmware/tegra/bpmp-debugfs.c b/drivers/firmware/tegra/bpmp-debugfs.c index 3ca2b5d9e66f..6dfe3d34109e 100644 --- a/drivers/firmware/tegra/bpmp-debugfs.c +++ b/drivers/firmware/tegra/bpmp-debugfs.c @@ -193,7 +193,7 @@ static int mrq_debug_read(struct tegra_bpmp *bpmp, const char *name, }, }; u32 fd = 0, len = 0; - int remaining, err; + int remaining, err, close_err; mutex_lock(&bpmp_debug_lock); err = mrq_debug_open(bpmp, name, &fd, &len, 0); @@ -231,7 +231,9 @@ static int mrq_debug_read(struct tegra_bpmp *bpmp, const char *name, *nbytes = len; close: - err = mrq_debug_close(bpmp, fd); + close_err = mrq_debug_close(bpmp, fd); + if (!err) + err = close_err; out: mutex_unlock(&bpmp_debug_lock); return err; @@ -319,7 +321,7 @@ static int bpmp_debug_show(struct seq_file *m, void *p) }, }; u32 fd = 0, len = 0; - int remaining, err; + int remaining, err, close_err; filename = get_filename(bpmp, file, fnamebuf, sizeof(fnamebuf)); if (!filename) @@ -353,7 +355,9 @@ static int bpmp_debug_show(struct seq_file *m, void *p) } close: - err = mrq_debug_close(bpmp, fd); + close_err = mrq_debug_close(bpmp, fd); + if (!err) + err = close_err; out: mutex_unlock(&bpmp_debug_lock); return err; -- 2.39.2
