[dpdk-dev] [PATCH v2 1/1] power: fix potential null dereferences

[Anatoly Burakov <anatoly.burakov@intel.com>]

Currently, the error paths can lead to attempts at dereferencing NULL
pointers. Add the check to avoid attempts at dereferencing NULL
pointers.

Coverity issue: 371895
Coverity issue: 371889
Fixes: 06cffd468fdd ("power: refactor ACPI and intel_pstate support")
Cc: anatoly.burakov@intel.com

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
---
 lib/power/power_pstate_cpufreq.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/power/power_pstate_cpufreq.c b/lib/power/power_pstate_cpufreq.c
index ba28ddcfca..3b607515fd 100644
--- a/lib/power/power_pstate_cpufreq.c
+++ b/lib/power/power_pstate_cpufreq.c
@@ -440,8 +440,10 @@ power_get_available_freqs(struct pstate_power_info *pi)
 			num_freqs, pi->lcore_id);
 
 out:
-	fclose(f_min);
-	fclose(f_max);
+	if (f_min != NULL)
+		fclose(f_min);
+	if (f_max != NULL)
+		fclose(f_max);
 
 	return ret;
 }
-- 
2.25.1