From: Liang Ma <liang.j.ma@intel.com>
Date: Mon, 8 Apr 2019 16:19:16 +0000 (+0100)
Subject: power: fix resource leak
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=3d45c3b0f5e10cb426b2cc8eb816af32d8d6e538

power: fix resource leak

Fix the resource leaking issue

Coverity issue: 337668
Fixes: b60fd5f8b1ce8f0a2c ("power: add bit for high frequency cores")

Signed-off-by: Liang Ma <liang.j.ma@intel.com>
Tested-by: David Hunt <david.hunt@intel.com>
---

diff --git a/lib/librte_power/power_pstate_cpufreq.c b/lib/librte_power/power_pstate_cpufreq.c
index c2c4e8e144..44a0b4a3fa 100644
--- a/lib/librte_power/power_pstate_cpufreq.c
+++ b/lib/librte_power/power_pstate_cpufreq.c
@@ -158,6 +158,7 @@ power_init_for_setting_freq(struct pstate_power_info *pi)
 	char *s_base;
 	uint32_t base_ratio = 0;
 	uint64_t max_non_turbo = 0;
+	int  ret_val = 0;
 
 	snprintf(fullpath_min, sizeof(fullpath_min), POWER_SYSFILE_MIN_FREQ,
 			pi->lcore_id);
@@ -199,8 +200,10 @@ power_init_for_setting_freq(struct pstate_power_info *pi)
 
 	/* Add MSR read to detect turbo status */
 
-	if (power_rdmsr(PLATFORM_INFO, &max_non_turbo, pi->lcore_id) < 0)
-		return -1;
+	if (power_rdmsr(PLATFORM_INFO, &max_non_turbo, pi->lcore_id) < 0) {
+		ret_val = -1;
+		goto out;
+	}
 
 	max_non_turbo = (max_non_turbo&NON_TURBO_MASK)>>NON_TURBO_OFFSET;
 
@@ -219,7 +222,9 @@ power_init_for_setting_freq(struct pstate_power_info *pi)
 	pi->core_base_freq = base_ratio * BUS_FREQ;
 
 out:
-	return 0;
+	if (f_base != NULL)
+		fclose(f_base);
+	return ret_val;
 }
 
 static int