[rtems commit] gr_rasta_io.c: Fix Unchecked return value from library ( CID #1399763)

[Joel Sherrill]

Module:    rtems
Branch:    master
Commit:    b84ce61aa38fb887b790d6ae162d181029cce629
Changeset: http://git.rtems.org/rtems/commit/?id=b84ce61aa38fb887b790d6ae162d181029cce629

Author:    Ryan Long <ryan.long at oarcorp.com>
Date:      Tue Mar  2 12:50:59 2021 -0500

gr_rasta_io.c: Fix Unchecked return value from library (CID #1399763)

CID 1399763: Unchecked return value from library in gr_rasta_io_init1().

Closes #4284

---

 bsps/shared/grlib/pci/gr_rasta_io.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bsps/shared/grlib/pci/gr_rasta_io.c b/bsps/shared/grlib/pci/gr_rasta_io.c
index f4c9d50..f93f73c 100644
--- a/bsps/shared/grlib/pci/gr_rasta_io.c
+++ b/bsps/shared/grlib/pci/gr_rasta_io.c
@@ -559,6 +559,7 @@ int gr_rasta_io_init1(struct drvmgr_dev *dev)
 	uint32_t bar0, bar1, bar0_size, bar1_size;
 	union drvmgr_key_value *value;
 	int resources_cnt;
+	int sc;
 
 	priv = grlib_calloc(1, sizeof(*priv));
 	if ( !priv )
@@ -574,7 +575,8 @@ int gr_rasta_io_init1(struct drvmgr_dev *dev)
 
 	strcpy(priv->prefix, "/dev/rastaio0");
 	priv->prefix[12] += dev->minor_drv;
-	mkdir(priv->prefix, S_IRWXU | S_IRWXG | S_IRWXO);
+	sc = mkdir(priv->prefix, S_IRWXU | S_IRWXG | S_IRWXO);
+	_Assert_Unused_variable_equals(sc, 0);
 	priv->prefix[13] = '/';
 	priv->prefix[14] = '\0';