From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Date: Mon, 26 Aug 2013 14:56:10 +0000 Subject: [patch] tgafb: potential NULL dereference in init Message-Id: <20130826145610.GA12428@elgon.mountain> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-fbdev@vger.kernel.org Static checkers complain that there are paths where "tga_type_name" can be NULL. I've re-arranged the code slightly so that's impossible. Signed-off-by: Dan Carpenter diff --git a/drivers/video/tgafb.c b/drivers/video/tgafb.c index c9c8e5a..2dcaf2e 100644 --- a/drivers/video/tgafb.c +++ b/drivers/video/tgafb.c @@ -1475,7 +1475,7 @@ tgafb_init_fix(struct fb_info *info) int tga_bus_pci = TGA_BUS_PCI(par->dev); int tga_bus_tc = TGA_BUS_TC(par->dev); u8 tga_type = par->tga_type; - const char *tga_type_name = NULL; + const char *tga_type_name; switch (tga_type) { case TGA_TYPE_8PLANE: @@ -1496,10 +1496,9 @@ tgafb_init_fix(struct fb_info *info) if (tga_bus_tc) tga_type_name = "Digital ZLX-E3"; break; - default: - tga_type_name = "Unknown"; - break; } + if (!tga_type_name) + tga_type_name = "Unknown"; strlcpy(info->fix.id, tga_type_name, sizeof(info->fix.id));