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Diffstat (limited to 'platform/x11/detect_prime.cpp')
-rw-r--r--platform/x11/detect_prime.cpp14
1 files changed, 8 insertions, 6 deletions
diff --git a/platform/x11/detect_prime.cpp b/platform/x11/detect_prime.cpp
index 0fde2a0c04..26008feade 100644
--- a/platform/x11/detect_prime.cpp
+++ b/platform/x11/detect_prime.cpp
@@ -159,10 +159,11 @@ int detect_prime() {
if (!stat_loc) {
// No need to do anything complicated here. Anything less than
// PIPE_BUF will be delivered in one read() call.
- read(fdset[0], string, sizeof(string) - 1);
-
- vendors[i] = string;
- renderers[i] = string + strlen(string) + 1;
+ // Leave it 'Unknown' otherwise.
+ if (read(fdset[0], string, sizeof(string) - 1) > 0) {
+ vendors[i] = string;
+ renderers[i] = string + strlen(string) + 1;
+ }
}
close(fdset[0]);
@@ -190,8 +191,9 @@ int detect_prime() {
memcpy(&string, vendor, vendor_len);
memcpy(&string[vendor_len], renderer, renderer_len);
- write(fdset[1], string, vendor_len + renderer_len);
-
+ if (write(fdset[1], string, vendor_len + renderer_len) == -1) {
+ print_verbose("Couldn't write vendor/renderer string.");
+ }
close(fdset[1]);
exit(0);
}