commit a06ca3f74892062294f3752ab15a9e5d7778a106
from: Stefan Sperling <stsp@stsp.name>
date: Sat Oct 15 18:41:40 2022 UTC

check for unlink(2) errors with the == -1 idiom, rather than != 0

ok op@

commit - a32780aad7a4bc8539de9e7fd39b371f2fe8c346
commit + a06ca3f74892062294f3752ab15a9e5d7778a106
blob - ec8a575ccccc0191c9140e4914ca6dd642338b9c
blob + 6e1e9e139a552a6791b66e9ba6a53bbf2d8ef886
--- lib/reference.c
+++ lib/reference.c
@@ -1320,7 +1320,7 @@ done:
 	free(path_refs);
 	free(path);
 	if (tmppath) {
-		if (unlink(tmppath) != 0 && err == NULL)
+		if (unlink(tmppath) == -1 && err == NULL)
 			err = got_error_from_errno2("unlink", tmppath);
 		free(tmppath);
 	}
@@ -1501,7 +1501,7 @@ delete_loose_ref(struct got_reference *ref, struct got
 
 	/* XXX: check if old content matches our expectations? */
 
-	if (unlink(path) != 0)
+	if (unlink(path) == -1)
 		err = got_error_from_errno2("unlink", path);
 done:
 	if (ref->lf == NULL && lf)
blob - 30e991da06f030404cbce64de63293d385ff1ac8
blob + d0e5af7c33c6ca8a4ba2e9dc621a494ed26dda57
--- lib/worktree.c
+++ lib/worktree.c
@@ -4135,12 +4135,12 @@ schedule_for_deletion(void *arg, unsigned char status,
 		size_t root_len;
 
 		if (dirfd != -1) {
-			if (unlinkat(dirfd, de_name, 0) != 0) {
+			if (unlinkat(dirfd, de_name, 0) == -1) {
 				err = got_error_from_errno2("unlinkat",
 				    ondisk_path);
 				goto done;
 			}
-		} else if (unlink(ondisk_path) != 0) {
+		} else if (unlink(ondisk_path) == -1) {
 			err = got_error_from_errno2("unlink", ondisk_path);
 			goto done;
 		}