From: Tvrtko Ursulin <[email protected]>

Be nice and explicitly free all memory on exit.

Also fix a Valgrind reported unitilised conditional jump.

Signed-off-by: Tvrtko Ursulin <[email protected]>
Cc: Petri Latvala <[email protected]>
---
 tools/intel_gpu_top.c | 51 +++++++++++++++++++++++++++++++++++--------
 1 file changed, 42 insertions(+), 9 deletions(-)

diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
index 26986a822bb7..997aff582ff7 100644
--- a/tools/intel_gpu_top.c
+++ b/tools/intel_gpu_top.c
@@ -437,6 +437,36 @@ static struct engines *discover_engines(char *device)
        return engines;
 }
 
+static void free_engines(struct engines *engines)
+{
+       struct pmu_counter **pmu, *free_list[] = {
+               &engines->r_gpu,
+               &engines->r_pkg,
+               &engines->imc_reads,
+               &engines->imc_writes,
+               NULL
+       };
+       unsigned int i;
+
+       for (pmu = &free_list[0]; *pmu; pmu++) {
+               if ((*pmu)->present)
+                       free((char *)(*pmu)->units);
+       }
+
+       for (i = 0; i < engines->num_engines; i++) {
+               struct engine *engine = engine_ptr(engines, i);
+
+               free((char *)engine->name);
+               free((char *)engine->short_name);
+               free((char *)engine->display_name);
+       }
+
+       closedir(engines->root);
+
+       free(engines->class);
+       free(engines);
+}
+
 #define _open_pmu(type, cnt, pmu, fd) \
 ({ \
        int fd__; \
@@ -1073,7 +1103,7 @@ static size_t freadat2buf(char *buf, const size_t sz, DIR 
*at, const char *name)
        return count;
 }
 
-static struct clients *scan_clients(struct clients *clients)
+static struct clients *scan_clients(struct clients *clients, bool display)
 {
        struct dirent *proc_dent;
        struct client *c;
@@ -1181,7 +1211,7 @@ next:
                        break;
        }
 
-       return display_clients(clients);
+       return display ? display_clients(clients) : clients;
 }
 
 static const char *bars[] = { " ", "▏", "▎", "▍", "▌", "▋", "▊", "▉", "█" };
@@ -2391,7 +2421,7 @@ static void process_stdin(unsigned int timeout_us)
 
 static bool has_drm_fdinfo(const struct igt_device_card *card)
 {
-       struct drm_client_fdinfo info;
+       struct drm_client_fdinfo info = { };
        unsigned int cnt;
        int fd;
 
@@ -2572,7 +2602,7 @@ int main(int argc, char **argv)
        }
 
        pmu_sample(engines);
-       scan_clients(clients);
+       scan_clients(clients, false);
        codename = igt_device_get_pretty_name(&card, false);
 
        while (!stop_top) {
@@ -2599,7 +2629,7 @@ int main(int argc, char **argv)
                pmu_sample(engines);
                t = (double)(engines->ts.cur - engines->ts.prev) / 1e9;
 
-               disp_clients = scan_clients(clients);
+               disp_clients = scan_clients(clients, true);
 
                if (stop_top)
                        break;
@@ -2649,21 +2679,24 @@ int main(int argc, char **argv)
                        pops->close_struct();
                }
 
-               if (stop_top)
-                       break;
-
                if (disp_clients != clients)
                        free_clients(disp_clients);
 
+               if (stop_top)
+                       break;
+
                if (output_mode == INTERACTIVE)
                        process_stdin(period_us);
                else
                        usleep(period_us);
        }
 
+       if (clients)
+               free_clients(clients);
+
        free(codename);
 err:
-       free(engines);
+       free_engines(engines);
        free(pmu_device);
 exit:
        igt_devices_free();
-- 
2.32.0

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