[coreboot-gerrit] Change in em100[master]: Fix CID 264287 Unchecked return value from library

[Stefan Reinauer (Code Review)]

Stefan Reinauer has submitted this change. ( https://review.coreboot.org/c/em100/+/37421 )

Change subject: Fix CID 264287 Unchecked return value from library
......................................................................

Fix CID 264287 Unchecked return value from library

The return code of mkdir() wasn't checked.

Signed-off-by: Stefan Reinauer 
Change-Id: I34d2d49d0ea17598f7bcfb56ee5debd9bd352b82
Reviewed-on: https://review.coreboot.org/c/em100/+/37421
Tested-by: build bot (Jenkins) 
Reviewed-by: Patrick Georgi 
---
M em100.c
1 file changed, 5 insertions(+), 1 deletion(-)

Approvals:
  build bot (Jenkins): Verified
  Patrick Georgi: Looks good to me, approved

diff --git a/em100.c b/em100.c
index aa16e8a..301d574 100644
--- a/em100.c
+++ b/em100.c
@@ -722,7 +722,11 @@
    if (dir) {
    	// success
    } else if (errno == ENOENT) {
-		mkdir(directory, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
+		if (mkdir(directory, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH)) {
+			perror(directory);
+			directory[0]=0;
+			return NULL;
+		}
    } else {
    	perror("EM100_HOME inaccessible");
    	directory[0]=0;