From c0d861afa5c986f7fe23647fbe411cd300f7c927 Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Wed, 19 Nov 2008 15:36:41 -0800 Subject: drivers/video/backlight/da903x.c: introduce missing kfree Error handling code following a kzalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // @r exists@ local idexpression x; statement S; expression E; identifier f,l; position p1,p2; expression *ptr != NULL; @@ ( if ((x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...)) == NULL) S | x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S ) <... when != x when != if (...) { <+...x...+> } x->f = E ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // Signed-off-by: Julia Lawall Cc: Mike Rapoport Cc: Richard Purdie Cc: Eric Miao Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/backlight/da903x.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/video/backlight/da903x.c b/drivers/video/backlight/da903x.c index 242c38250166..75388b959439 100644 --- a/drivers/video/backlight/da903x.c +++ b/drivers/video/backlight/da903x.c @@ -119,6 +119,7 @@ static int da903x_backlight_probe(struct platform_device *pdev) default: dev_err(&pdev->dev, "invalid backlight device ID(%d)\n", pdev->id); + kfree(data); return -EINVAL; } -- cgit v1.2.3