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authorJulia Lawall <julia@diku.dk>2009-11-22 10:11:16 -0800
committerTony Lindgren <tony@atomide.com>2009-11-22 10:24:32 -0800
commit20e11c2d1c8ca49829ee9e5690adc89488e5da31 (patch)
tree621be172dfa44ee49052b97ae8913ac41e62d317 /arch/arm/plat-omap/iovmm.c
parent13a032295710b49d331bb53086a7de4557243851 (diff)
downloadlinux-linaro-stable-20e11c2d1c8ca49829ee9e5690adc89488e5da31.tar.gz
arch/arm/plat-omap: Drop an unnecessary NULL test
map_iovm_area is only called from a context where its second argument is known not to be NULL, so drop the unnecessary test. If new could be NULL, the initialization of da should be moved below the test. A simplified version of the semantic match that detects this problem is as follows (http://coccinelle.lip6.fr/): // <smpl> @match exists@ expression x, E; identifier fld; @@ * x->fld ... when != \(x = E\|&x\) * x == NULL // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Russell King <linux@arm.linux.org.uk> Cc: Hiroshi DOYU <Hiroshi.DOYU@nokia.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/arm/plat-omap/iovmm.c')
-rw-r--r--arch/arm/plat-omap/iovmm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/plat-omap/iovmm.c b/arch/arm/plat-omap/iovmm.c
index 544772ede470..936aef1971cd 100644
--- a/arch/arm/plat-omap/iovmm.c
+++ b/arch/arm/plat-omap/iovmm.c
@@ -446,7 +446,7 @@ static int map_iovm_area(struct iommu *obj, struct iovm_struct *new,
struct scatterlist *sg;
u32 da = new->da_start;
- if (!obj || !new || !sgt)
+ if (!obj || !sgt)
return -EINVAL;
BUG_ON(!sgtable_ok(sgt));