perf tools: Use correct return type for readn function

Changing readn function return type to ssize_t because read returns
ssize_t not int.

Changing callers holding variable types as well.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1385634619-8129-3-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2013-11-28 11:30:14 +01:00 committed by Arnaldo Carvalho de Melo
parent 6233dd5efd
commit 727ebd544f
4 changed files with 13 additions and 13 deletions

View File

@ -1709,7 +1709,7 @@ static int process_nrcpus(struct perf_file_section *section __maybe_unused,
struct perf_header *ph, int fd,
void *data __maybe_unused)
{
size_t ret;
ssize_t ret;
u32 nr;
ret = readn(fd, &nr, sizeof(nr));
@ -1753,7 +1753,7 @@ static int process_total_mem(struct perf_file_section *section __maybe_unused,
void *data __maybe_unused)
{
uint64_t mem;
size_t ret;
ssize_t ret;
ret = readn(fd, &mem, sizeof(mem));
if (ret != sizeof(mem))
@ -1822,7 +1822,7 @@ static int process_cmdline(struct perf_file_section *section __maybe_unused,
struct perf_header *ph, int fd,
void *data __maybe_unused)
{
size_t ret;
ssize_t ret;
char *str;
u32 nr, i;
struct strbuf sb;
@ -1858,7 +1858,7 @@ static int process_cpu_topology(struct perf_file_section *section __maybe_unused
struct perf_header *ph, int fd,
void *data __maybe_unused)
{
size_t ret;
ssize_t ret;
u32 nr, i;
char *str;
struct strbuf sb;
@ -1914,7 +1914,7 @@ static int process_numa_topology(struct perf_file_section *section __maybe_unuse
struct perf_header *ph, int fd,
void *data __maybe_unused)
{
size_t ret;
ssize_t ret;
u32 nr, node, i;
char *str;
uint64_t mem_total, mem_free;
@ -1974,7 +1974,7 @@ static int process_pmu_mappings(struct perf_file_section *section __maybe_unused
struct perf_header *ph, int fd,
void *data __maybe_unused)
{
size_t ret;
ssize_t ret;
char *name;
u32 pmu_num;
u32 type;
@ -2534,7 +2534,7 @@ static int check_magic_endian(u64 magic, uint64_t hdr_sz,
int perf_file_header__read(struct perf_file_header *header,
struct perf_header *ph, int fd)
{
int ret;
ssize_t ret;
lseek(fd, 0, SEEK_SET);
@ -2628,7 +2628,7 @@ static int perf_file_header__read_pipe(struct perf_pipe_file_header *header,
struct perf_header *ph, int fd,
bool repipe)
{
int ret;
ssize_t ret;
ret = readn(fd, header, sizeof(*header));
if (ret <= 0)
@ -2669,7 +2669,7 @@ static int read_attr(int fd, struct perf_header *ph,
struct perf_event_attr *attr = &f_attr->attr;
size_t sz, left;
size_t our_sz = sizeof(f_attr->attr);
int ret;
ssize_t ret;
memset(f_attr, 0, sizeof(*f_attr));

View File

@ -1158,7 +1158,7 @@ static int __perf_session__process_pipe_events(struct perf_session *session,
void *buf = NULL;
int skip = 0;
u64 head;
int err;
ssize_t err;
void *p;
perf_tool__fill_defaults(tool);

View File

@ -151,12 +151,12 @@ unsigned long convert_unit(unsigned long value, char *unit)
return value;
}
int readn(int fd, void *buf, size_t n)
ssize_t readn(int fd, void *buf, size_t n)
{
void *buf_start = buf;
while (n) {
int ret = read(fd, buf, n);
ssize_t ret = read(fd, buf, n);
if (ret <= 0)
return ret;

View File

@ -253,7 +253,7 @@ bool strlazymatch(const char *str, const char *pat);
int strtailcmp(const char *s1, const char *s2);
char *strxfrchar(char *s, char from, char to);
unsigned long convert_unit(unsigned long value, char *unit);
int readn(int fd, void *buf, size_t size);
ssize_t readn(int fd, void *buf, size_t n);
struct perf_event_attr;