[PATCH i-g-t v2 03/21] lib/igt_drm_fdinfo: Detect invalid drm-client-id

[Lucas De Marchi <lucas.demarchi@intel.com>]

Use strtol() for string to long conversion which allows us to detect if
there was an invalid number. It also has the advantage that it already
ignores leading spaces.

Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 lib/igt_drm_fdinfo.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/igt_drm_fdinfo.c b/lib/igt_drm_fdinfo.c
index bc3082d42..b700ec317 100644
--- a/lib/igt_drm_fdinfo.c
+++ b/lib/igt_drm_fdinfo.c
@@ -224,6 +224,7 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info,
 	while ((l = strtok_r(_buf, "\n", &ctx))) {
 		uint64_t val = 0;
 		const char *v;
+		char *end_ptr;
 		int idx;
 
 		_buf = NULL;
@@ -233,8 +234,9 @@ __igt_parse_drm_fdinfo(int dir, const char *fd, struct drm_client_fdinfo *info,
 			good++;
 		}  else if ((v = find_kv(l, "drm-client-id",
 					 strlen("drm-client-id")))) {
-			info->id = atol(v);
-			good++;
+			info->id = strtol(v, &end_ptr, 10);
+			if (end_ptr != v)
+				good++;
 		} else if ((v = find_kv(l, "drm-pdev", strlen("drm-pdev")))) {
 			/* optional */
 			assert(strlen(v) < sizeof(info->pdev));
-- 
2.43.0