RE: [PATCH 2/6] fpga: zynqmp: Initialized variables before using it
From: Nava kishore Manne <hidden>
Date: 2022-03-15 11:48:19
Also in:
linux-fpga, lkml
Hi Yilun, Thanks for providing the review comments. Please find my response inline.
-----Original Message----- From: Xu Yilun <yilun.xu@intel.com> Sent: Friday, March 11, 2022 7:58 PM To: Nava kishore Manne <redacted> Cc: mdf@kernel.org; hao.wu@intel.com; trix@redhat.com; Michal Simek [off-list ref]; linux-fpga@vger.kernel.org; linux- kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 2/6] fpga: zynqmp: Initialized variables before using it On Tue, Mar 08, 2022 at 03:15:15PM +0530, Nava kishore Manne wrote:quoted
This patch initialized variables with the proper value. Addresses-Coverity: "uninit_use: Using uninitialized value" Signed-off-by: Nava kishore Manne <redacted> --- drivers/fpga/zynqmp-fpga.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)diff --git a/drivers/fpga/zynqmp-fpga.c b/drivers/fpga/zynqmp-fpga.c index c60f20949c47..e931d69819a7 100644 --- a/drivers/fpga/zynqmp-fpga.c +++ b/drivers/fpga/zynqmp-fpga.c@@ -41,7 +41,7 @@ static int zynqmp_fpga_ops_write(structfpga_manager *mgr,quoted
const char *buf, size_t size) { struct zynqmp_fpga_priv *priv; - dma_addr_t dma_addr; + dma_addr_t dma_addr = 0;The first use of this variable is as an output parameter: kbuf = dma_alloc_coherent(priv->dev, size, &dma_addr, GFP_KERNEL); So I don't think it needs to be initialized as 0.
This issue is found by Coverity Scan, Whether this param is input/output this fix will not impact the actual functionality. In order to fix the issues reported by the Coverity tool, this fix is needed. Regards, Navakishore. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel