From e43939bcc6123e02314aa403eef94d5ace441f7f Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Sun, 27 Aug 2023 02:06:32 +0200
Subject: ports: qbe, cproc :^)

---
 src/kernel/pipe.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/kernel/pipe.c')

diff --git a/src/kernel/pipe.c b/src/kernel/pipe.c
index 6325369..b7f5ad3 100644
--- a/src/kernel/pipe.c
+++ b/src/kernel/pipe.c
@@ -1,3 +1,4 @@
+#include <camellia/errno.h>
 #include <kernel/panic.h>
 #include <kernel/pipe.h>
 #include <kernel/util.h>
@@ -8,7 +9,7 @@ void pipe_joinqueue(Handle *h, Proc *proc, void __user *pbuf, size_t pbuflen) {
 	assert(h && h->type == HANDLE_PIPE);
 	assert(h->readable ^ h->writeable);
 	if (!h->pipe.sister) {
-		regs_savereturn(&proc->regs, -1);
+		regs_savereturn(&proc->regs, h->readable ? 0 : -EPIPE);
 		return;
 	}
 
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