linux-kernel - [PATCH] fbdev/offb: Simplify offb_init

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Message-Id: <1c94c99117617c1a844f6551b7bca27f23c5f0c8.1697871190.git.christophe.jaillet@wanadoo.fr>
Date:   Sat, 21 Oct 2023 08:53:37 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     Helge Deller <deller@....de>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        linux-fbdev@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: [PATCH] fbdev/offb: Simplify offb_init_fb()

Turn a strcpy()+strncat()+'\0' into an equivalent snprintf().

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
This patch is *not* even compile tested because cross-compiling leads to
some errors like on my machine:
   cc1: error: cannot load plugin ./scripts/gcc-plugins/randomize_layout_plugin.so: ./scripts/gcc-plugins/randomize_layout_plugin.so: undefined symbol: _ZNK6frange6acceptERK14vrange_visitor

So review with care!
---
 drivers/video/fbdev/offb.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c
index dcb1b81d35db..b421b46d88ef 100644
--- a/drivers/video/fbdev/offb.c
+++ b/drivers/video/fbdev/offb.c
@@ -423,11 +423,9 @@ static void offb_init_fb(struct platform_device *parent, const char *name,
 	fix = &info->fix;
 	var = &info->var;
 
-	if (name) {
-		strcpy(fix->id, "OFfb ");
-		strncat(fix->id, name, sizeof(fix->id) - sizeof("OFfb "));
-		fix->id[sizeof(fix->id) - 1] = '\0';
-	} else
+	if (name)
+		snprintf(fix->id, sizeof(fix->id), "OFfb %s", name);
+	else
 		snprintf(fix->id, sizeof(fix->id), "OFfb %pOFn", dp);
 
 
-- 
2.34.1