[PATCH 2/3] lib: fwts_cpu: return info struct only when requested CPU is found

[Ricardo Neri]

If the requested CPU is not found, we would be returning an empty
structure (along with NULL pointers). It makes no sense to return
such useless structure. Instead, return NULL.

Signed-off-by: Ricardo Neri <ricardo.neri-calderon at linux.intel.com>
---
 src/lib/src/fwts_cpu.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/lib/src/fwts_cpu.c b/src/lib/src/fwts_cpu.c
index 053f850..2e0834d 100644
--- a/src/lib/src/fwts_cpu.c
+++ b/src/lib/src/fwts_cpu.c
@@ -106,7 +106,7 @@ fwts_cpuinfo_x86 *fwts_cpu_get_info(const int which_cpu)
 	FILE *fp;
 	char buffer[1024];
 	fwts_cpuinfo_x86 *cpu;
-	int cpu_num = -1;
+	int cpu_num = -1, found = 0;
 
 	if ((cpu = (fwts_cpuinfo_x86*)calloc(1, sizeof(fwts_cpuinfo_x86))) == NULL)
 		return NULL;
@@ -135,6 +135,8 @@ fwts_cpuinfo_x86 *fwts_cpu_get_info(const int which_cpu)
 				continue;
 		}
 
+		found = 1;
+
 		if (!strncmp(buffer, "vendor_id", 9)) {
 			cpu->vendor_id = strdup(ptr);
 			continue;
@@ -162,6 +164,11 @@ fwts_cpuinfo_x86 *fwts_cpu_get_info(const int which_cpu)
 	}
 	fclose(fp);
 
+	if (!found) {
+		free(cpu);
+		cpu = NULL;
+	}
+
 	return cpu;
 }
 
-- 
2.9.0