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([171.76.81.193]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-219dc964f09sm182886795ad.26.2024.12.30.11.10.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Dec 2024 11:10:02 -0800 (PST) From: Nihar Chaithanya To: dpenkler@gmail.com, gregkh@linuxfoundation.org Cc: dan.carpenter@linaro.org, skhan@linuxfoundation.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Nihar Chaithanya Subject: [PATCH v6 08/15] staging: gpib: gpio: Return error value from gpib_register_driver() Date: Tue, 31 Dec 2024 00:26:28 +0530 Message-Id: <20241230185633.175690-9-niharchaithanya@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241230185633.175690-1-niharchaithanya@gmail.com> References: <20241230185633.175690-1-niharchaithanya@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The function gpib_register_driver() can fail and does not return an error value if it fails. Return the error value if gpib_register_driver() fails. Add pr_err() statement indicating the fail and also the error value. Signed-off-by: Nihar Chaithanya --- drivers/staging/gpib/gpio/gpib_bitbang.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/staging/gpib/gpio/gpib_bitbang.c b/drivers/staging/gpi= b/gpio/gpib_bitbang.c index a2d562cbd65b..057f9264de34 100644 --- a/drivers/staging/gpib/gpio/gpib_bitbang.c +++ b/drivers/staging/gpib/gpio/gpib_bitbang.c @@ -1341,7 +1341,12 @@ return_to_local : bb_return_to_local, =20 static int __init bb_init_module(void) { - gpib_register_driver(&bb_interface, THIS_MODULE); + int result =3D gpib_register_driver(&bb_interface, THIS_MODULE); + + if (result) { + pr_err("gpib_bitbang: gpib_register_driver failed: error =3D %d\n", resu= lt); + return result; + } =20 dbg_printk(0, "module loaded with pin map \"%s\"%s\n", pin_map, (sn7516x_used) ? " and SN7516x driver support" : ""); --=20 2.34.1