From: Ian Rogers irogers@google.com

[ Upstream commit 05be17eed774aaf56f6b1e12714325ca3a266c04 ]

Switch from returning -1 to -errno so that callers can determine types of failure.

Reviewed-by: Namhyung Kim namhyung@kernel.org Signed-off-by: Ian Rogers irogers@google.com Acked-by: Arnaldo Carvalho de Melo acme@redhat.com Cc: Adrian Hunter adrian.hunter@intel.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Andi Kleen ak@linux.intel.com Cc: Athira Rajeev atrajeev@linux.vnet.ibm.com Cc: Ben Gainey ben.gainey@arm.com Cc: Colin Ian King colin.i.king@gmail.com Cc: Dominique Martinet asmadeus@codewreck.org Cc: Ilkka Koskinen ilkka@os.amperecomputing.com Cc: Ingo Molnar mingo@redhat.com Cc: James Clark james.clark@linaro.org Cc: Jiri Olsa jolsa@kernel.org Cc: Kan Liang kan.liang@linux.intel.com Cc: Mark Rutland mark.rutland@arm.com Cc: Oliver Upton oliver.upton@linux.dev Cc: Paran Lee p4ranlee@gmail.com Cc: Peter Zijlstra peterz@infradead.org Cc: Steinar H. Gunderson sesse@google.com Cc: Steven Rostedt (VMware) rostedt@goodmis.org Cc: Thomas Falcon thomas.falcon@intel.com Cc: Weilin Wang weilin.wang@intel.com Cc: Yang Jihong yangjihong@bytedance.com Cc: Yang Li yang.lee@linux.alibaba.com Cc: Ze Gao zegao2021@gmail.com Cc: Zixian Cai fzczx123@gmail.com Cc: zhaimingbing zhaimingbing@cmss.chinamobile.com Link: https://lore.kernel.org/r/20241118225345.889810-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo acme@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- tools/lib/api/fs/fs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c index 82f53d81a7a78..a0a6a907315f0 100644 --- a/tools/lib/api/fs/fs.c +++ b/tools/lib/api/fs/fs.c @@ -323,7 +323,7 @@ int filename__read_int(const char *filename, int *value) int fd = open(filename, O_RDONLY), err = -1;

if (fd < 0) - return -1; + return -errno;

if (read(fd, line, sizeof(line)) > 0) { *value = atoi(line); @@ -341,7 +341,7 @@ static int filename__read_ull_base(const char *filename, int fd = open(filename, O_RDONLY), err = -1;

if (fd < 0) - return -1; + return -errno;

if (read(fd, line, sizeof(line)) > 0) { *value = strtoull(line, NULL, base); @@ -428,7 +428,7 @@ int filename__write_int(const char *filename, int value) char buf[64];

if (fd < 0) - return err; + return -errno;

sprintf(buf, "%d", value); if (write(fd, buf, sizeof(buf)) == sizeof(buf))