[PATCH v2 9/9] tools/power/x86/intel-speed-select: Fix memory leak

[Prarit Bhargava]

cpumasks are allocated by calling the alloc_cpu_mask() function and are
never free'd.  They should be free'd after the commands have run.

Fix the memory leaks by calling free_cpu_set().

Signed-off-by: Prarit Bhargava <pra...@redhat.com>
Cc: Srinivas Pandruvada <srinivas.pandruv...@linux.intel.com>
Cc: David Arcari <darc...@redhat.com>
Cc: linux-kernel@vger.kernel.org
---
 tools/power/x86/intel-speed-select/isst-config.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/tools/power/x86/intel-speed-select/isst-config.c 
b/tools/power/x86/intel-speed-select/isst-config.c
index 78f0cebda1da..59753b3917bb 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -603,6 +603,10 @@ static int isst_fill_platform_info(void)
 
        close(fd);
 
+       if (isst_platform_info.api_version > supported_api_ver) {
+               printf("Incompatible API versions; Upgrade of tool is 
required\n");
+               return -1;
+       }
        return 0;
 }
 
@@ -1528,6 +1532,7 @@ static void cmdline(int argc, char **argv)
 {
        int opt;
        int option_index = 0;
+       int ret;
 
        static struct option long_options[] = {
                { "cpu", required_argument, 0, 'c' },
@@ -1589,13 +1594,14 @@ static void cmdline(int argc, char **argv)
        set_max_cpu_num();
        set_cpu_present_cpu_mask();
        set_cpu_target_cpu_mask();
-       isst_fill_platform_info();
-       if (isst_platform_info.api_version > supported_api_ver) {
-               printf("Incompatible API versions; Upgrade of tool is 
required\n");
-               exit(0);
-       }
+       ret = isst_fill_platform_info();
+       if (ret)
+               goto out;
 
        process_command(argc, argv);
+out:
+       free_cpu_set(present_cpumask);
+       free_cpu_set(target_cpumask);
 }
 
 int main(int argc, char **argv)
-- 
2.21.0