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authorJulia Lawall <julia@diku.dk>2011-04-01 14:23:47 +0000
committerPaul Mundt <lethal@linux-sh.org>2011-04-06 09:44:57 -0700
commita8c908d353e52336b864025dbd8253134c3f5411 (patch)
treea94cf9d1774028e08803f14fdd07819d139d5899 /drivers/video/bfin-lq035q1-fb.c
parentb73a21fc66fee35b41db755abebfacba48b2fc76 (diff)
drivers/video/bfin-lq035q1-fb.c: introduce missing kfree
Error handling code following a kmalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( 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) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/video/bfin-lq035q1-fb.c')
-rw-r--r--drivers/video/bfin-lq035q1-fb.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/video/bfin-lq035q1-fb.c b/drivers/video/bfin-lq035q1-fb.c
index c8e1f04941b..23b6c4b62c7 100644
--- a/drivers/video/bfin-lq035q1-fb.c
+++ b/drivers/video/bfin-lq035q1-fb.c
@@ -154,8 +154,10 @@ static int __devinit lq035q1_spidev_probe(struct spi_device *spi)
ret = lq035q1_control(spi, LQ035_SHUT_CTL, LQ035_ON);
ret |= lq035q1_control(spi, LQ035_DRIVER_OUTPUT_CTL, ctl->mode);
- if (ret)
+ if (ret) {
+ kfree(ctl);
return ret;
+ }
spi_set_drvdata(spi, ctl);