Thread (25 messages) 25 messages, 3 authors, 2012-01-31
STALE5237d REVIEWED: 1 (0M)

[PATCH 02/19] ARM: OMAP3+: SmartReflex: add missing error-handling code

From: Jean Pihet <hidden>
Date: 2012-01-31 09:58:15
Also in: linux-omap
Subsystem: arm port, omap2+ support, the rest · Maintainers: Russell King, Aaro Koskinen, Andreas Kemnade, Kevin Hilman, Roger Quadros, Tony Lindgren, Linus Torvalds

From: Julia Lawall <redacted>

At this point, the ioremap has taken place, so the error handling code at
the label err_iounmap should be used rather than returning directly.

The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
identifier x;
@@

kfree(x)

@@
identifier r.x;
expression E1!=0,E2,E3,E4;
statement S;
@@

(
if (<+...x...+>) S
|
if (...) { ... when != kfree(x)
               when != if (...) { ... kfree(x); ... }
               when != x = E3
* return E1;
}
... when != x = E2
if (...) { ... when != x = E4
 kfree(x); ... return ...; }
)
// </smpl>

Signed-off-by: Julia Lawall <redacted>
Acked-by: Kevin Hilman <redacted>
Signed-off-by: Jean Pihet <redacted>
---
 arch/arm/mach-omap2/smartreflex.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/smartreflex.c b/arch/arm/mach-omap2/smartreflex.c
index 9dd9345..7e755bb 100644
--- a/arch/arm/mach-omap2/smartreflex.c
+++ b/arch/arm/mach-omap2/smartreflex.c
@@ -897,7 +897,7 @@ static int __init omap_sr_probe(struct platform_device *pdev)
 		ret = sr_late_init(sr_info);
 		if (ret) {
 			pr_warning("%s: Error in SR late init\n", __func__);
-			return ret;
+			goto err_iounmap;
 		}
 	}
 
-- 
1.7.5.4
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