sparc: kernel/sbus.c: fix memory leakage

The variable iommu and strbuf are not freed properly if it goes to error.

Signed-off-by: Cong Ding <dinggnu@gmail.com>
Reviewed-by: Richard Mortimer <richm@oldelvet.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc/kernel/sbus.c b/arch/sparc/kernel/sbus.c
index 1271b3a..be5bdf9 100644 (file)
--- a/arch/sparc/kernel/sbus.c
+++ b/arch/sparc/kernel/sbus.c
@@ -554,10 +554,8 @@ static void __init sbus_iommu_init(struct platform_device *op)
        regs = pr->phys_addr;
 
        iommu = kzalloc(sizeof(*iommu), GFP_ATOMIC);
-       if (!iommu)
-               goto fatal_memory_error;
        strbuf = kzalloc(sizeof(*strbuf), GFP_ATOMIC);
-       if (!strbuf)
+       if (!iommu || !strbuf)
                goto fatal_memory_error;
 
        op->dev.archdata.iommu = iommu;
@@ -656,6 +654,8 @@ static void __init sbus_iommu_init(struct platform_device *op)
        return;
 
 fatal_memory_error:
+       kfree(iommu);
+       kfree(strbuf);
        prom_printf("sbus_iommu_init: Fatal memory allocation error.\n");
 }