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[82.64.73.52]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-39efa4332f8sm3287320f8f.40.2025.04.18.10.35.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Apr 2025 10:35:01 -0700 (PDT) From: Dave Penkler To: gregkh@linuxfoundation.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org Cc: marcello.carla@gmx.com, Dave Penkler Subject: [PATCH 6/8] staging: gpib: Change error code for no listener Date: Fri, 18 Apr 2025 19:34:32 +0200 Message-ID: <20250418173434.2892-7-dpenkler@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250418173434.2892-1-dpenkler@gmail.com> References: <20250418173434.2892-1-dpenkler@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" When doing a write a test is made to see whether there are any listeners. The code was returning ENODEV which is incorrect. The user library translates ENOTCONN to a user level no listener error code. Change the error code to ENOTCONN. Fixes: 4cd654f84769 ("staging: gpib: Add gpio bitbang GPIB driver") Tested-by: Dave Penkler Signed-off-by: Dave Penkler --- drivers/staging/gpib/gpio/gpib_bitbang.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/gpib/gpio/gpib_bitbang.c b/drivers/staging/gpi= b/gpio/gpib_bitbang.c index 1d650cb57cd2..86b98eb1ce69 100644 --- a/drivers/staging/gpib/gpio/gpib_bitbang.c +++ b/drivers/staging/gpib/gpio/gpib_bitbang.c @@ -516,7 +516,7 @@ static int bb_write(struct gpib_board *board, u8 *buffe= r, size_t length, gpiod_get_value(NRFD), gpiod_get_value(NDAC)); =20 if (gpiod_get_value(NRFD) && gpiod_get_value(NDAC)) { /* check for listen= er */ - retval =3D -ENODEV; + retval =3D -ENOTCONN; goto write_end; } =20 --=20 2.49.0