1 files changed, 150 insertions, 0 deletions
diff --git a/meta-agl-drm-lease/recipes-core/psplash/files/0003-Fix-unused-result-warnings.patch b/meta-agl-drm-lease/recipes-core/psplash/files/0003-Fix-unused-result-warnings.patch
new file mode 100644
index 00000000..948609d9
--- /dev/null
+++ b/meta-agl-drm-lease/recipes-core/psplash/files/0003-Fix-unused-result-warnings.patch
@@ -0,0 +1,150 @@
+From edb01af9b4789b9c3b908329f6be5819e2cfe954 Mon Sep 17 00:00:00 2001
+From: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com>
+Date: Mon, 25 Apr 2022 10:59:42 +0300
+Subject: [PATCH 03/17] Fix 'unused-result' warnings
+
+This fixes warnings such as:
+
+    ignoring return value of 'chdir', declared with attribute warn_unused_result [-Wunused-result]
+
+drm-backend backport from:
+https://patchwork.yoctoproject.org/project/yocto/cover/20220425075954.10427-1-vasyl.vavrychuk@opensynergy.com/
+
+Signed-off-by: Vasyl Vavrychuk <vasyl.vavrychuk@opensynergy.com>
+---
+ psplash-systemd.c | 36 +++++++++++++++++++++++++++++++++---
+ psplash-write.c   | 23 ++++++++++++++++++-----
+ psplash.c         |  5 ++++-
+ 3 files changed, 55 insertions(+), 9 deletions(-)
+
+diff --git a/psplash-systemd.c b/psplash-systemd.c
+index 840bd4e..dcf7e61 100644
+--- a/psplash-systemd.c
++++ b/psplash-systemd.c
+@@ -32,6 +32,7 @@ int get_progress(void)
+ 	int r;
+ 	char buffer[20];
+ 	int len;
++	ssize_t written;
+ 
+         /* Connect to the system bus */
+ 	r = sd_bus_new(&bus);
+@@ -71,11 +72,36 @@ int get_progress(void)
+ 		current_progress = progress;
+ 
+ 	len = snprintf(buffer, 20, "PROGRESS %d", (int)(current_progress * 100));
+-	write(pipe_fd, buffer, len + 1);
++	written = write(pipe_fd, buffer, len + 1);
++	if (written == -1) {
++		/* EPIPE could mean that psplash detected boot complete sooner
++		then psplash-systemd and exited */
++		if (errno != EPIPE) {
++			perror("write");
++			r = -1;
++			goto finish;
++		}
++	} else if (written < len + 1) {
++		fprintf(stderr, "Wrote %zd bytes, less then expected %d bytes\n",
++			written, len + 1);
++		r = -1;
++		goto finish;
++	}
+ 
+ 	if (progress == 1.0) {
+ 		printf("Systemd reported progress of 1.0, quit psplash.\n");
+-		write(pipe_fd, "QUIT", 5);
++		written = write(pipe_fd, "QUIT", 5);
++		if (written == -1) {
++			/* EPIPE could mean that psplash detected boot complete
++			sooner then psplash-systemd and exited */
++			if (errno != EPIPE) {
++				perror("write");
++				r = -1;
++				goto finish;
++			}
++		} else if (written < 5)
++			fprintf(stderr, "Wrote %zd bytes, less then expected 5 bytes\n",
++				written);
+ 		r = -1;
+ 	}
+ 
+@@ -123,7 +149,11 @@ int main()
+ 	if (!rundir)
+ 		rundir = "/run";
+ 
+-	chdir(rundir);
++	r = chdir(rundir);
++	if (r < 0) {
++		perror("chdir");
++		goto finish;
++	}
+ 
+ 	if ((pipe_fd = open (PSPLASH_FIFO,O_WRONLY|O_NONBLOCK)) == -1) {
+ 		fprintf(stderr, "Error unable to open fifo");
+diff --git a/psplash-write.c b/psplash-write.c
+index eee0ea3..16b87e1 100644
+--- a/psplash-write.c
++++ b/psplash-write.c
+@@ -21,8 +21,10 @@
+ 
+ int main(int argc, char **argv)
+ {
+-  char *rundir;
+-  int   pipe_fd;
++  char   *rundir;
++  int     pipe_fd;
++  size_t  count;
++  ssize_t written;
+ 
+   rundir = getenv("PSPLASH_FIFO_DIR");
+ 
+@@ -35,7 +37,10 @@ int main(int argc, char **argv)
+       exit(-1);
+     }
+ 
+-  chdir(rundir);
++  if (chdir(rundir)) {
++    perror("chdir");
++    exit(-1);
++  }
+ 
+   if ((pipe_fd = open (PSPLASH_FIFO,O_WRONLY|O_NONBLOCK)) == -1)
+     {
+@@ -45,8 +50,16 @@ int main(int argc, char **argv)
+       exit (-1);
+     }
+ 
+-  write(pipe_fd, argv[1], strlen(argv[1])+1);
++  count = strlen(argv[1]) + 1;
++  written = write(pipe_fd, argv[1], count);
++  if (written == -1) {
++    perror("write");
++    exit(-1);
++  } else if ((size_t)written < count) {
++    fprintf(stderr, "Wrote %zd bytes, less then expected %zu bytes\n",
++      written, count);
++    exit(-1);
++  }
+ 
+   return 0;
+ }
+-
+diff --git a/psplash.c b/psplash.c
+index 838ac13..62244ba 100644
+--- a/psplash.c
++++ b/psplash.c
+@@ -264,7 +264,10 @@ main (int argc, char** argv)
+   if (!rundir)
+     rundir = "/run";
+ 
+-  chdir(rundir);
++  if (chdir(rundir)) {
++    perror("chdir");
++    exit(-1);
++  }
+ 
+   if (mkfifo(PSPLASH_FIFO, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP))
+     {
+-- 
+2.25.1
+