linux-kernel - [PATCH v2 1/2] staging: media: atomisp: pci: Remove checks before kfree/kvfree

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Message-Id: <20210605020855.1065-2-fmdefrancesco@gmail.com>
Date:   Sat,  5 Jun 2021 04:08:54 +0200
From:   "Fabio M. De Francesco" <fmdefrancesco@...il.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Cc:     "Fabio M. De Francesco" <fmdefrancesco@...il.com>
Subject: [PATCH v2 1/2] staging: media: atomisp: pci: Remove checks before kfree/kvfree

Removed checks for pointers != NULL before freeing memory. If kvfree()
and kfree() are given NULL pointers no operations are performed, so
there is no need for the above-mentioned checks. Coccinelle detected the
second of the two unnecessary checks.

Signed-off-by: Fabio M. De Francesco <fmdefrancesco@...il.com>
Acked-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
---

v1 -> v2: Added Acked-by Sakari Alius. No changes in code.

 drivers/staging/media/atomisp/pci/sh_css_firmware.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css_firmware.c b/drivers/staging/media/atomisp/pci/sh_css_firmware.c
index f4ce8ace9d50..5301cc014c7e 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_firmware.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_firmware.c
@@ -363,10 +363,8 @@ void sh_css_unload_firmware(void)
 		unsigned int i = 0;
 
 		for (i = 0; i < sh_css_num_binaries; i++) {
-			if (fw_minibuffer[i].name)
-				kfree((void *)fw_minibuffer[i].name);
-			if (fw_minibuffer[i].buffer)
-				kvfree(fw_minibuffer[i].buffer);
+			kfree((void *)fw_minibuffer[i].name);
+			kvfree(fw_minibuffer[i].buffer);
 		}
 		kfree(fw_minibuffer);
 		fw_minibuffer = NULL;
-- 
2.31.1