@@ -, +, @@ 
---
 src/lib/efivars_sysfs.c |   16 +++++++++++++---
 1 files changed, 13 insertions(+), 3 deletions(-)
--- a/src/lib/efivars_sysfs.c	
+++ a/src/lib/efivars_sysfs.c	
@@ -66,6 +66,7 @@ static efi_status_t
 sysfs_write_variable(const char *filename, efi_variable_t *var)
 {
 	int fd;
+	int rc = EFI_SUCCESS;
 	size_t writesize;
 	char buffer[PATH_MAX+40];
 
@@ -77,12 +78,21 @@ sysfs_write_variable(const char *filename, efi_variable_t *var)
 		return EFI_INVALID_PARAMETER;
 	}
 	writesize = write(fd, var, sizeof(*var));
+	if (writesize == -1) {
+		if (errno == -ENOSPC)
+			rc = EFI_OUT_OF_RESOURCES;
+		else
+			rc = EFI_INVALID_PARAMETER;
+		goto out;
+	}
 	if (writesize != sizeof(*var)) {
-		close(fd);
-		return EFI_INVALID_PARAMETER;
+		rc = EFI_INVALID_PARAMETER;
 	}
+out:
+	if (rc != EFI_SUCCESS)
+		fprintf(stderr, "Failed to write variable: %s\n", strerror(errno));
 	close(fd);
-	return EFI_SUCCESS;
+	return rc;
 }
 
 
--