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Wed, 28 Oct 2026 05:55:35 -0700 (PDT) Received: from localhost.localdomain ([2a06:c701:4778:c500:47f1:8a3:6e76:cd9e]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a978d57c36sm43998305e9.11.2026.10.28.05.55.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Oct 2026 05:55:35 -0700 (PDT) From: Avi Weiss To: Brett Creeley , Jason Gunthorpe Cc: Dave Jiang , Saeed Mahameed , Zhi Wang , Jonathan Cameron , linux-kernel@vger.kernel.org, Avi Weiss Subject: [PATCH] fwctl: pds: report device information length Date: Wed, 28 Oct 2026 14:55:32 +0200 Message-ID: <20261028125531.978325-2-thnkslprpt@gmail.com> X-Mailer: git-send-email 2.43.0 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit pdsfc_info() allocates and populates struct fwctl_info_pds but leaves the output length unset. Consequently, fwctl_cmd_info() copies no PDS-specific data and reports a zero device_data_len even when userspace provides an output buffer. Set *length to sizeof(*info) before returning the structure. Fixes: 4d09dd11d7d0 ("pds_fwctl: initial driver framework") Signed-off-by: Avi Weiss --- drivers/fwctl/pds/main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/fwctl/pds/main.c b/drivers/fwctl/pds/main.c index 68fe254dd10ad..01abc7e83975f 100644 --- a/drivers/fwctl/pds/main.c +++ b/drivers/fwctl/pds/main.c @@ -63,6 +63,7 @@ static void *pdsfc_info(struct fwctl_uctx *uctx, size_t *length) return ERR_PTR(-ENOMEM); info->uctx_caps = pdsfc_uctx->uctx_caps; + *length = sizeof(*info); return info; } base-commit: cee9395acd8043be0644b25c34bfa86623f2b935 -- 2.43.0