[igt-dev] [i-g-t 1/6] lib: Interface to close the drm fd

[Bhanuprakash Modem <bhanuprakash.modem@intel.com>]

Add new helper drm_close_driver() to close the drm fd. So that
every user could call drm_close_driver() instead of close().

Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
---
 lib/drmtest.c | 17 +++++++++++++++++
 lib/drmtest.h |  1 +
 2 files changed, 18 insertions(+)

diff --git a/lib/drmtest.c b/lib/drmtest.c
index c91a91425..03b5239b2 100644
--- a/lib/drmtest.c
+++ b/lib/drmtest.c
@@ -604,6 +604,23 @@ int drm_open_driver(int chipset)
 	return fd;
 }
 
+/**
+ * drm_close_driver:
+ * @fd: a drm file descriptor
+ *
+ * Close the drm file descriptor @fd.
+ *
+ * Returns: 0 on success or -1 on error.
+ */
+int drm_close_driver(int fd)
+{
+	/* Avoid closing standard file descriptors (0, 1, and 2). */
+	if (fd < 3)
+		return -1;
+
+	return close(fd);
+}
+
 /**
  * drm_open_driver_master:
  * @chipset: OR'd flags for each chipset to search, eg. #DRIVER_INTEL
diff --git a/lib/drmtest.h b/lib/drmtest.h
index 3c88b85c6..2b7ffc765 100644
--- a/lib/drmtest.h
+++ b/lib/drmtest.h
@@ -105,6 +105,7 @@ int drm_open_driver_render(int chipset);
 int __drm_open_driver_another(int idx, int chipset);
 int __drm_open_driver(int chipset);
 int __drm_open_driver_render(int chipset);
+int drm_close_driver(int fd);
 
 void igt_require_amdgpu(int fd);
 void igt_require_intel(int fd);
-- 
2.40.0