From: Michal Simek <michal.simek@amd.com>
Date: Mon, 28 Jul 2025 07:07:52 +0000 (+0200)
Subject: fpga: xilinx: Check valid desc structure
X-Git-Tag: v2025.10-rc3~4^2~6
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7fc04c9a82e858a1d042d8c7b008831c28d5965e;p=pandora-u-boot.git

fpga: xilinx: Check valid desc structure

FPGA validation can fail and return value needs to be checked.

Addresses-Coverity-ID: CID 583150: Null pointer dereferences  (NULL_RETURNS)
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/876b6f8dbc99ca305460183dbd18635a35ccc989.1753686468.git.michal.simek@amd.com
---

diff --git a/drivers/fpga/xilinx.c b/drivers/fpga/xilinx.c
index 28c68faba55..25b348648ef 100644
--- a/drivers/fpga/xilinx.c
+++ b/drivers/fpga/xilinx.c
@@ -50,6 +50,9 @@ int fpga_loadbitstream(int devnum, char *fpgadata, size_t size,
 	dataptr = (unsigned char *)fpgadata;
 	/* Find out fpga_description */
 	desc = fpga_validate(devnum, dataptr, 0);
+	if (!desc)
+		return FPGA_FAIL;
+
 	/* Assign xilinx device description */
 	xdesc = desc->devdesc;