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Fri, 20 Feb 2026 23:17:46 -0800 (PST) Received: from localhost.localdomain ([138.199.21.245]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c70b71a75e7sm1234690a12.14.2026.02.20.23.17.44 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Fri, 20 Feb 2026 23:17:45 -0800 (PST) From: Eric-Terminal To: Liam Girdwood , Mark Brown Cc: linux-kernel@vger.kernel.org, Eric-Terminal Subject: [PATCH] regulator: tps65185: check devm_kzalloc() result in probe Date: Sat, 21 Feb 2026 15:17:28 +0800 Message-ID: <20260221071728.23761-1-ericterminal@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=926; i=ericterminal@gmail.com; h=from:subject; bh=a2mz5poO1KT0V5V4Ng046OZH0/NP1QXsrc7TMHjiQ/8=; b=owGbwMvMwCXWM/dCzeS3H+sZT6slMWTOjL70oD49+thd91WbVVtT21I8dygx1pc+OLrLYMKao rLLa94v6ihlYRDjYpAVU2S5+3/f3FyvW3Oucx/OhZnDygQyhIGLUwAmksDN8E9ho4dCS/bU74dl vx/YUaLHsfWKqVHYvByexfsq/jdu5Y1lZHhR8fTP5qOX5uu5htWvzpBpea2uv/Jul39cyRZDpQN r9zADAA== X-Developer-Key: i=ericterminal@gmail.com; a=openpgp; fpr=DDFFBE9D6D4ADA9CD70BC36D8C9DD07C93EDF17F Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" tps65185_probe() dereferences the allocation result immediately by using da= ta->regmap. If devm_kzalloc() returns NULL under memory pressure, this lead= s to a NULL pointer dereference. Add the missing allocation check and return -ENOMEM on failure. Signed-off-by: Eric-Terminal --- drivers/regulator/tps65185.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/regulator/tps65185.c b/drivers/regulator/tps65185.c index 3286c9ab3..786622d8d 100644 --- a/drivers/regulator/tps65185.c +++ b/drivers/regulator/tps65185.c @@ -332,6 +332,9 @@ static int tps65185_probe(struct i2c_client *client) int i; =20 data =3D devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + data->regmap =3D devm_regmap_init_i2c(client, ®map_config); if (IS_ERR(data->regmap)) return dev_err_probe(&client->dev, PTR_ERR(data->regmap), --=20 2.47.3