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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2013-03-28 09:24:15 -0400
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2013-03-29 10:12:41 -0400
commit8333c77edf8fd1654cd96f3f6ee0f078dd64b58b (patch)
tree135da27f10763e512868c34155891864877f6622 /src
parent0db809489fd88a320ae1023ffe36a9965e9a91b2 (diff)
Always use errno > 0 to help gcc
gcc thinks that errno might be negative, and functions could return something positive on error (-errno). Should not matter in practice, but makes an -O4 build much quieter.
Diffstat (limited to 'src')
-rw-r--r--src/fstab-generator/fstab-generator.c2
-rw-r--r--src/libsystemd-bus/sd-bus.c2
-rw-r--r--src/libsystemd-daemon/sd-daemon.c4
-rw-r--r--src/locale/localectl.c2
-rw-r--r--src/shared/calendarspec.c4
-rw-r--r--src/shared/fileio.c2
-rw-r--r--src/shared/socket-util.c2
-rw-r--r--src/shared/time-util.c4
-rw-r--r--src/shared/util.c6
-rw-r--r--src/shared/util.h2
-rw-r--r--src/systemctl/systemctl.c4
-rw-r--r--src/tmpfiles/tmpfiles.c2
12 files changed, 18 insertions, 18 deletions
diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c
index 4eaa52d1c2..2790fc6e8e 100644
--- a/src/fstab-generator/fstab-generator.c
+++ b/src/fstab-generator/fstab-generator.c
@@ -69,7 +69,7 @@ static int mount_find_pri(struct mntent *me, int *ret) {
errno = 0;
r = strtoul(pri, &end, 10);
- if (errno != 0)
+ if (errno > 0)
return -errno;
if (end == pri || (*end != ',' && *end != 0))
diff --git a/src/libsystemd-bus/sd-bus.c b/src/libsystemd-bus/sd-bus.c
index 6acc59e82c..08a218b7cc 100644
--- a/src/libsystemd-bus/sd-bus.c
+++ b/src/libsystemd-bus/sd-bus.c
@@ -507,7 +507,7 @@ static int parse_exec_address(sd_bus *b, const char **p, char **guid) {
errno = 0;
ul = strtoul(*p + 4, (char**) p, 10);
- if (errno != 0 || **p != '=' || ul > 256) {
+ if (errno > 0 || **p != '=' || ul > 256) {
r = -EINVAL;
goto fail;
}
diff --git a/src/libsystemd-daemon/sd-daemon.c b/src/libsystemd-daemon/sd-daemon.c
index 79d8ca3709..b1ff43132a 100644
--- a/src/libsystemd-daemon/sd-daemon.c
+++ b/src/libsystemd-daemon/sd-daemon.c
@@ -84,7 +84,7 @@ _sd_export_ int sd_listen_fds(int unset_environment) {
errno = 0;
l = strtoul(e, &p, 10);
- if (errno != 0) {
+ if (errno > 0) {
r = -errno;
goto finish;
}
@@ -109,7 +109,7 @@ _sd_export_ int sd_listen_fds(int unset_environment) {
errno = 0;
l = strtoul(e, &p, 10);
- if (errno != 0) {
+ if (errno > 0) {
r = -errno;
goto finish;
}
diff --git a/src/locale/localectl.c b/src/locale/localectl.c
index 9f996dbc98..fc312894c6 100644
--- a/src/locale/localectl.c
+++ b/src/locale/localectl.c
@@ -421,7 +421,7 @@ static int add_locales_from_libdir (Set *locales) {
errno = 0;
}
- if (errno != 0) {
+ if (errno > 0) {
log_error("Failed to read locale directory: %m");
return -errno;
}
diff --git a/src/shared/calendarspec.c b/src/shared/calendarspec.c
index cc680779b5..13f70d8e72 100644
--- a/src/shared/calendarspec.c
+++ b/src/shared/calendarspec.c
@@ -391,7 +391,7 @@ static int prepend_component(const char **p, CalendarComponent **c) {
errno = 0;
value = strtoul(*p, &e, 10);
- if (errno != 0)
+ if (errno > 0)
return -errno;
if (e == *p)
return -EINVAL;
@@ -400,7 +400,7 @@ static int prepend_component(const char **p, CalendarComponent **c) {
if (*e == '/') {
repeat = strtoul(e+1, &ee, 10);
- if (errno != 0)
+ if (errno > 0)
return -errno;
if (ee == e+1)
return -EINVAL;
diff --git a/src/shared/fileio.c b/src/shared/fileio.c
index 0eca4416f8..1c7d485130 100644
--- a/src/shared/fileio.c
+++ b/src/shared/fileio.c
@@ -364,7 +364,7 @@ int write_env_file(const char *fname, char **l) {
fflush(f);
if (ferror(f)) {
- if (errno != 0)
+ if (errno > 0)
r = -errno;
else
r = -EIO;
diff --git a/src/shared/socket-util.c b/src/shared/socket-util.c
index f6ddea3183..53457886e2 100644
--- a/src/shared/socket-util.c
+++ b/src/shared/socket-util.c
@@ -68,7 +68,7 @@ int socket_address_parse(SocketAddress *a, const char *s) {
errno = 0;
if (inet_pton(AF_INET6, n, &a->sockaddr.in6.sin6_addr) <= 0) {
free(n);
- return errno != 0 ? -errno : -EINVAL;
+ return errno > 0 ? -errno : -EINVAL;
}
free(n);
diff --git a/src/shared/time-util.c b/src/shared/time-util.c
index e192d5ef58..0c6deb66f4 100644
--- a/src/shared/time-util.c
+++ b/src/shared/time-util.c
@@ -547,7 +547,7 @@ int parse_usec(const char *t, usec_t *usec) {
errno = 0;
l = strtoll(p, &e, 10);
- if (errno != 0)
+ if (errno > 0)
return -errno;
if (l < 0)
@@ -627,7 +627,7 @@ int parse_nsec(const char *t, nsec_t *nsec) {
errno = 0;
l = strtoll(p, &e, 10);
- if (errno != 0)
+ if (errno > 0)
return -errno;
if (l < 0)
diff --git a/src/shared/util.c b/src/shared/util.c
index 2241b79859..7281cc8ab8 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -2265,7 +2265,7 @@ int parse_bytes(const char *t, off_t *bytes) {
errno = 0;
l = strtoll(p, &e, 10);
- if (errno != 0)
+ if (errno > 0)
return -errno;
if (l < 0)
@@ -4191,7 +4191,7 @@ int get_user_creds(
}
if (!p)
- return errno != 0 ? -errno : -ESRCH;
+ return errno > 0 ? -errno : -ESRCH;
if (uid)
*uid = p->pw_uid;
@@ -4272,7 +4272,7 @@ int get_group_creds(const char **groupname, gid_t *gid) {
}
if (!g)
- return errno != 0 ? -errno : -ESRCH;
+ return errno > 0 ? -errno : -ESRCH;
if (gid)
*gid = g->gr_gid;
diff --git a/src/shared/util.h b/src/shared/util.h
index aefde5f85a..485733f650 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -595,7 +595,7 @@ int create_tmp_dir(char template[], char** dir_name);
#define FOREACH_DIRENT(de, d, on_error) \
for (errno = 0, de = readdir(d);; errno = 0, de = readdir(d)) \
if (!de) { \
- if (errno != 0) { \
+ if (errno > 0) { \
on_error; \
} \
break; \
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index edd136addd..f7ae47e7c7 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -4629,11 +4629,11 @@ static int parse_time_spec(const char *t, usec_t *_u) {
errno = 0;
hour = strtol(t, &e, 10);
- if (errno != 0 || *e != ':' || hour < 0 || hour > 23)
+ if (errno > 0 || *e != ':' || hour < 0 || hour > 23)
return -EINVAL;
minute = strtol(e+1, &e, 10);
- if (errno != 0 || *e != 0 || minute < 0 || minute > 59)
+ if (errno > 0 || *e != 0 || minute < 0 || minute > 59)
return -EINVAL;
n = now(CLOCK_REALTIME);
diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
index 614644a0ab..918702e06f 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -611,7 +611,7 @@ static int glob_item(Item *i, int (*action)(Item *, const char *)) {
if ((k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g)) != 0) {
if (k != GLOB_NOMATCH) {
- if (errno != 0)
+ if (errno > 0)
errno = EIO;
log_error("glob(%s) failed: %m", i->path);