From 0c17f85710a70a24ec19852a2f6f0749e807656f Mon Sep 17 00:00:00 2001
From: "mwleeds@mailtundra.com" <mwleeds@mailtundra.com>
Date: Sat, 6 Apr 2024 18:47:25 -0700
Subject: [PATCH] zfs: Fix malloc() success check
This code was hitting the error code path whenever malloc() succeeded
rather than when it failed, so presumably this part of the code hasn't
been tested. I had to apply this fix (and others) to get U-Boot to boot
from ZFS on an Nvidia Jetson TX2 NX SoM (an aarch64 computer).
Signed-off-by: Phaedrus Leeds <mwleeds@mailtundra.com>
---
fs/zfs/zfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/zfs/zfs.c b/fs/zfs/zfs.c
index 1fec96cd5c..14779dee32 100644
--- a/fs/zfs/zfs.c
+++ b/fs/zfs/zfs.c
@@ -655,7 +655,7 @@ dmu_read(dnode_end_t *dn, uint64_t blkid, void **buf,
dn->endian)
<< SPA_MINBLOCKSHIFT;
*buf = malloc(size);
- if (*buf) {
+ if (!*buf) {
err = ZFS_ERR_OUT_OF_MEMORY;
break;
}
--
2.39.5