Linux Tegra architecture development
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From: Jon Hunter <jonathanh@nvidia.com>
To: Thierry Reding <thierry.reding@kernel.org>
Cc: <linux-tegra@vger.kernel.org>, Jon Hunter <jonathanh@nvidia.com>
Subject: [PATCH V2 1/2] firmware: tegra: bpmp: Propagate debugfs errors
Date: Fri, 29 May 2026 16:08:45 +0100	[thread overview]
Message-ID: <20260529150847.70545-1-jonathanh@nvidia.com> (raw)

The Tegra BPMP debugfs code returns -ENOMEM for most cases where calls
to debugfs_create_dir() or debugfs_create_file() fail. These debugfs
functions return an ERR_PTR with the actual error code on failure.
Therefore, update the Tegra BPMP debugfs code to propagate the actual
error code on failure.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
Changes since V1:
- Added this patch for V2

 drivers/firmware/tegra/bpmp-debugfs.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/firmware/tegra/bpmp-debugfs.c b/drivers/firmware/tegra/bpmp-debugfs.c
index 4221fed70ad4..29037e2b3158 100644
--- a/drivers/firmware/tegra/bpmp-debugfs.c
+++ b/drivers/firmware/tegra/bpmp-debugfs.c
@@ -468,7 +468,7 @@ static int bpmp_populate_debugfs_inband(struct tegra_bpmp *bpmp,
 			dentry = debugfs_create_file(name, mode, parent, bpmp,
 						     &bpmp_debug_fops);
 			if (IS_ERR(dentry)) {
-				err = -ENOMEM;
+				err = PTR_ERR(dentry);
 				goto out;
 			}
 		}
@@ -719,7 +719,7 @@ static int bpmp_populate_dir(struct tegra_bpmp *bpmp, struct seqbuf *seqbuf,
 		if (t & DEBUGFS_S_ISDIR) {
 			dentry = debugfs_create_dir(name, parent);
 			if (IS_ERR(dentry))
-				return -ENOMEM;
+				return PTR_ERR(dentry);
 			err = bpmp_populate_dir(bpmp, seqbuf, dentry, depth+1);
 			if (err < 0)
 				return err;
@@ -732,7 +732,7 @@ static int bpmp_populate_dir(struct tegra_bpmp *bpmp, struct seqbuf *seqbuf,
 						     parent, bpmp,
 						     &debugfs_fops);
 			if (IS_ERR(dentry))
-				return -ENOMEM;
+				return PTR_ERR(dentry);
 		}
 	}
 
@@ -782,11 +782,11 @@ int tegra_bpmp_init_debugfs(struct tegra_bpmp *bpmp)
 
 	root = debugfs_create_dir("bpmp", NULL);
 	if (IS_ERR(root))
-		return -ENOMEM;
+		return PTR_ERR(root);
 
 	bpmp->debugfs_mirror = debugfs_create_dir("debug", root);
 	if (IS_ERR(bpmp->debugfs_mirror)) {
-		err = -ENOMEM;
+		err = PTR_ERR(bpmp->debugfs_mirror);
 		goto out;
 	}
 
-- 
2.43.0


             reply	other threads:[~2026-05-29 15:09 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-29 15:08 Jon Hunter [this message]
2026-05-29 15:08 ` [PATCH V2 2/2] firmware: tegra: bpmp: Add support for multi-socket platforms Jon Hunter
2026-05-29 15:50   ` Jon Hunter

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